diff --git a/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.cpp b/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.cpp
index 89d93be8c6ac445c2ab9bdc29128ceda793ecc7a..c688eafdc5e621710d44a6823af55e9770e6a7ba 100644
--- a/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.cpp
+++ b/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.cpp
@@ -143,11 +143,6 @@ int MockServiceAbilityManagerService::RemoveMission(int id)
     return 0;
 }
 
-int MockServiceAbilityManagerService::RemoveStack(int id)
-{
-    return 0;
-}
-
 int MockServiceAbilityManagerService::MoveMissionToEnd(const sptr<IRemoteObject> &token, const bool nonFirst)
 {
     return 0;
diff --git a/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.h b/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.h
index 79805a4cc33f521a105eaa738c0cf09237891cbf..1a62e61740536f4933e6557e04c7fc7c171e1cc7 100644
--- a/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.h
+++ b/frameworks/kits/ability/ability_runtime/test/mock/AMS/mock_serviceability_manager_service.h
@@ -149,7 +149,6 @@ public:
 
     int RemoveMission(int id) override;
 
-    int RemoveStack(int id) override;
     int PowerOff() override;
     int PowerOn() override;
     int LockMission(int missionId) override
diff --git a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_client_interface1.cpp b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_client_interface1.cpp
index 9cd20832d354ec60e57e339b5e9a9e88a27b4d80..e934cf1b242a388bc4fd11f6308baa955208452f 100644
--- a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_client_interface1.cpp
+++ b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_client_interface1.cpp
@@ -180,11 +180,6 @@ ErrCode AbilityManagerClient::RemoveMissions(std::vector<int> missionId)
     return ret;
 }
 
-ErrCode AbilityManagerClient::RemoveStack(int id)
-{
-    return ERR_OK;
-}
-
 ErrCode AbilityManagerClient::KillProcess(const std::string &bundleName)
 {
     return ERR_OK;
diff --git a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.cpp b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.cpp
index d40a91e86cd9e518b776c90202d60aff8c80f165..6bdf4f912f778b2986a7b67bace9df4d24e54ec6 100644
--- a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.cpp
+++ b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.cpp
@@ -156,11 +156,6 @@ int MockAbilityManagerService::RemoveMission(int id)
     return 0;
 }
 
-int MockAbilityManagerService::RemoveStack(int id)
-{
-    return 0;
-}
-
 int MockAbilityManagerService::MoveMissionToTop(int32_t missionId)
 {
     return 0;
diff --git a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.h b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.h
index b52b1b1867e26ec199236cc41342f0a7b9f91f1a..9aadc05adacabfd51a19df731cad35309e1a2715 100644
--- a/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.h
+++ b/frameworks/kits/ability/native/test/mock/include/mock_ability_manager_service.h
@@ -171,7 +171,6 @@ public:
 
     int RemoveMission(int id) override;
 
-    int RemoveStack(int id) override;
     sptr<IAbilityScheduler> AcquireDataAbility(
         const Uri &uri, bool tryBind, const sptr<IRemoteObject> &callerToken) override
     {
diff --git a/frameworks/kits/appkit/native/test/mock/include/mock_ability_manager_client_interface1.cpp b/frameworks/kits/appkit/native/test/mock/include/mock_ability_manager_client_interface1.cpp
index 2a86fb9e7c0dce93cfde80581fa4891cfee4cc73..ae73ffc6c9caccb510d7ffb420cb39caa5db00de 100644
--- a/frameworks/kits/appkit/native/test/mock/include/mock_ability_manager_client_interface1.cpp
+++ b/frameworks/kits/appkit/native/test/mock/include/mock_ability_manager_client_interface1.cpp
@@ -175,11 +175,6 @@ ErrCode AbilityManagerClient::RemoveMissions(std::vector<int> missionId)
     return ret;
 }
 
-ErrCode AbilityManagerClient::RemoveStack(int id)
-{
-    return ERR_OK;
-}
-
 ErrCode AbilityManagerClient::KillProcess(const std::string &bundleName)
 {
     return ERR_OK;
diff --git a/frameworks/kits/appkit/test/Mock/include/mock_ability_mgr_service.h b/frameworks/kits/appkit/test/Mock/include/mock_ability_mgr_service.h
index d6588ed87ac47fc900799a17418beb8ffb788c7c..954b1140787d610bacbfd74c87059791db16498d 100644
--- a/frameworks/kits/appkit/test/Mock/include/mock_ability_mgr_service.h
+++ b/frameworks/kits/appkit/test/Mock/include/mock_ability_mgr_service.h
@@ -55,7 +55,6 @@ public:
     MOCK_METHOD3(GetRecentMissions, int(const int32_t, const int32_t, std::vector<AbilityMissionInfo> &));
     MOCK_METHOD2(GetMissionSnapshot, int(const int32_t, MissionPixelMap &));
     MOCK_METHOD1(RemoveMission, int(int));
-    MOCK_METHOD1(RemoveStack, int(int));
     MOCK_METHOD4(OnRemoteRequest, int(uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option));
 
     MOCK_METHOD1(MoveMissionToTop, int(int32_t));
diff --git a/frameworks/kits/test/mock/AMS/mock_ability_manager_service.cpp b/frameworks/kits/test/mock/AMS/mock_ability_manager_service.cpp
index 38e407f46f1d88df5e9a8e260c84bd2d614e09cf..9d78ed9e276402e6e4e551c4d5cfd060f325bc5f 100644
--- a/frameworks/kits/test/mock/AMS/mock_ability_manager_service.cpp
+++ b/frameworks/kits/test/mock/AMS/mock_ability_manager_service.cpp
@@ -190,11 +190,6 @@ int MockAbilityManagerService::RemoveMission(int id)
     return 0;
 }
 
-int MockAbilityManagerService::RemoveStack(int id)
-{
-    return 0;
-}
-
 sptr<IAbilityScheduler> MockAbilityManagerService::AcquireDataAbility(
     const Uri &uri, bool tryBind, const sptr<IRemoteObject> &callerToken)
 {
diff --git a/frameworks/kits/test/mock/AMS/mock_ability_manager_service.h b/frameworks/kits/test/mock/AMS/mock_ability_manager_service.h
index f6b37411010254e1f9f5308dd9f446819323bdae..3c21ceecdabdbb10773fee85fae9f7d8609ee34a 100644
--- a/frameworks/kits/test/mock/AMS/mock_ability_manager_service.h
+++ b/frameworks/kits/test/mock/AMS/mock_ability_manager_service.h
@@ -154,7 +154,6 @@ public:
 
     int RemoveMission(int id) override;
 
-    int RemoveStack(int id) override;
     int PowerOff() override;
     int PowerOn() override;
     int LockMission(int missionId) override
diff --git a/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.cpp b/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.cpp
index d45b1c8c00316d76ded124994af2857e29fb7000..e5af44a41882ce01502ffd2635d3b3b5a5674b6c 100644
--- a/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.cpp
+++ b/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.cpp
@@ -181,11 +181,6 @@ int MockServiceAbilityManagerService::RemoveMission(int id)
     return 0;
 }
 
-int MockServiceAbilityManagerService::RemoveStack(int id)
-{
-    return 0;
-}
-
 int MockServiceAbilityManagerService::MoveMissionToEnd(const sptr<IRemoteObject> &token, const bool nonFirst)
 {
     return 0;
diff --git a/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.h b/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.h
index 438c3e677a61ad1d71b513e4b97832f0aec7c2bc..ad92b9a1efebbe61d9d9cc72960327c5bdfbbfd4 100644
--- a/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.h
+++ b/frameworks/kits/test/mock/AMS/mock_serviceability_manager_service.h
@@ -148,7 +148,6 @@ public:
 
     int RemoveMission(int id) override;
 
-    int RemoveStack(int id) override;
     int PowerOff() override;
     int PowerOn() override;
     int LockMission(int missionId) override
diff --git a/interfaces/innerkits/ability_manager/include/ability_manager_client.h b/interfaces/innerkits/ability_manager/include/ability_manager_client.h
index ab936d74dcfa40205264435f0b6764403be3b81d..ba964c84fcdb788428e0beeedbf84bd6e9cd8225 100644
--- a/interfaces/innerkits/ability_manager/include/ability_manager_client.h
+++ b/interfaces/innerkits/ability_manager/include/ability_manager_client.h
@@ -318,14 +318,6 @@ public:
      */
     ErrCode RemoveMissions(std::vector<int> missionId);
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    ErrCode RemoveStack(int id);
-
     /**
      * Kill the process immediately.
      *
diff --git a/interfaces/innerkits/ability_manager/include/ability_manager_interface.h b/interfaces/innerkits/ability_manager/include/ability_manager_interface.h
index 191d3d96360689da131a133a73d62d80ff0f2e5f..63ce3566ef5f105a12da6952873f915dcc47748d 100644
--- a/interfaces/innerkits/ability_manager/include/ability_manager_interface.h
+++ b/interfaces/innerkits/ability_manager/include/ability_manager_interface.h
@@ -357,14 +357,6 @@ public:
      */
     virtual int RemoveMission(int id) = 0;
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    virtual int RemoveStack(int id) = 0;
-
     /**
      * Kill the process immediately.
      *
diff --git a/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.cpp b/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.cpp
index c40ee7839f8ca4809ae197c60e4ceca4a8f8dc64..41126989dd1ce259356f9b8d259c0d66d4479fb3 100644
--- a/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.cpp
+++ b/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.cpp
@@ -1361,124 +1361,6 @@ napi_value NAPI_RemoveMissions(napi_env env, napi_callback_info info)
     return ((callBackMode) ? (nullptr) : (ret));
 }
 
-auto NAPI_ClearMissionsAsyncExecuteCallback = [](napi_env env, void *data) {
-    HILOG_INFO("clearMissions called(CallBack Mode)...");
-    AsyncClearMissionsCallbackInfo *async_callback_info = (AsyncClearMissionsCallbackInfo *)data;
-    async_callback_info->result = GetAbilityManagerInstance()->RemoveStack(NapiAbilityMgr::DEFAULT_STACK_ID);
-};
-
-auto NAPI_ClearMissionsAsyncCompleteCallback = [](napi_env env, napi_status status, void *data) {
-    HILOG_INFO("clearMissions compeleted(CallBack Mode)...");
-    AsyncClearMissionsCallbackInfo *async_callback_info = (AsyncClearMissionsCallbackInfo *)data;
-    napi_value result[NUMBER_OF_PARAMETERS_TWO] = {0};
-    napi_value callback = nullptr;
-    napi_value undefined = nullptr;
-    napi_value callResult = nullptr;
-
-    result[0] = GetCallbackErrorValue(async_callback_info->env, NapiAbilityMgr::BUSINESS_ERROR_CODE_OK);
-    napi_create_int32(async_callback_info->env, async_callback_info->result, &result[1]);
-    napi_get_undefined(env, &undefined);
-
-    napi_get_reference_value(env, async_callback_info->callback[0], &callback);
-    napi_call_function(env, undefined, callback, NUMBER_OF_PARAMETERS_TWO, &result[0], &callResult);
-
-    if (async_callback_info->callback[0] != nullptr) {
-        napi_delete_reference(env, async_callback_info->callback[0]);
-    }
-
-    napi_delete_async_work(env, async_callback_info->asyncWork);
-    delete async_callback_info;
-};
-
-auto NAPI_ClearMissionsPromiseCompleteCallback = [](napi_env env, napi_status status, void *data) {
-    HILOG_INFO("clearMissions compeleted(Promise Mode)...");
-    AsyncClearMissionsCallbackInfo *async_callback_info = (AsyncClearMissionsCallbackInfo *)data;
-    napi_value result = nullptr;
-    napi_create_int32(async_callback_info->env, async_callback_info->result, &result);
-    napi_resolve_deferred(async_callback_info->env, async_callback_info->deferred, result);
-    napi_delete_async_work(env, async_callback_info->asyncWork);
-    delete async_callback_info;
-};
-
-napi_value NAPI_ClearMissionsWrap(
-    napi_env env, napi_callback_info info, bool callBackMode, AsyncClearMissionsCallbackInfo &async_callback_info)
-{
-    HILOG_INFO("NAPI_ClearMissions called...");
-    if (callBackMode) {
-        napi_value resourceName = nullptr;
-        napi_create_string_latin1(env, "NAPI_ClearMissionsCallBack", NAPI_AUTO_LENGTH, &resourceName);
-
-        napi_create_async_work(env,
-            nullptr,
-            resourceName,
-            NAPI_ClearMissionsAsyncExecuteCallback,
-            NAPI_ClearMissionsAsyncCompleteCallback,
-            (void *)&async_callback_info,
-            &async_callback_info.asyncWork);
-
-        NAPI_CALL(env, napi_queue_async_work(env, async_callback_info.asyncWork));
-        // create return
-        napi_value ret = 0;
-        NAPI_CALL(env, napi_create_int32(env, 0, &ret));
-        return ret;
-    } else {
-        napi_value resourceName = nullptr;
-        napi_create_string_latin1(env, "NAPI_ClearMissionsPromise", NAPI_AUTO_LENGTH, &resourceName);
-
-        napi_deferred deferred;
-        napi_value promise;
-        NAPI_CALL(env, napi_create_promise(env, &deferred, &promise));
-        async_callback_info.deferred = deferred;
-
-        napi_create_async_work(env,
-            nullptr,
-            resourceName,
-            NAPI_ClearMissionsAsyncExecuteCallback,
-            NAPI_ClearMissionsPromiseCompleteCallback,
-            (void *)&async_callback_info,
-            &async_callback_info.asyncWork);
-        napi_queue_async_work(env, async_callback_info.asyncWork);
-        return promise;
-    }
-}
-
-napi_value NAPI_ClearMissions(napi_env env, napi_callback_info info)
-{
-    size_t argc = 1;
-    napi_value argv[1] = {};
-    NAPI_CALL(env, napi_get_cb_info(env, info, &argc, argv, NULL, NULL));
-    HILOG_INFO("argc = [%{public}zu]", argc);
-
-    bool callBackMode = false;
-    if (argc >= 1) {
-        napi_valuetype valuetype = napi_valuetype::napi_null;
-        NAPI_CALL(env, napi_typeof(env, argv[0], &valuetype));
-        NAPI_ASSERT(env, valuetype == napi_function, "Wrong argument type. Function expected.");
-        callBackMode = true;
-    }
-
-    AsyncClearMissionsCallbackInfo *async_callback_info = new (std::nothrow) AsyncClearMissionsCallbackInfo {
-        .env = env,
-        .asyncWork = nullptr,
-        .deferred = nullptr,
-    };
-    if (async_callback_info == nullptr) {
-        return nullptr;
-    }
-
-    if (callBackMode) {
-        napi_create_reference(env, argv[0], 1, &async_callback_info->callback[0]);
-    }
-
-    napi_value ret = NAPI_ClearMissionsWrap(env, info, callBackMode, *async_callback_info);
-    if (ret == nullptr) {
-        delete async_callback_info;
-        async_callback_info = nullptr;
-    }
-
-    return ((callBackMode) ? (nullptr) : (ret));
-}
-
 auto NAPI_MoveMissionToTopAsyncExecuteCallback = [](napi_env env, void *data) {
     HILOG_INFO("moveMissionToTop called(CallBack Mode)...");
     AsyncMoveMissionToTopCallbackInfo *async_callback_info = (AsyncMoveMissionToTopCallbackInfo *)data;
diff --git a/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.h b/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.h
index fb6d259d6ca5176017b3bc37f3e1bcd2a9fe4950..2cefa6198ef3ac60c40ac9e3386b52887b8ca196 100644
--- a/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.h
+++ b/interfaces/kits/napi/aafwk/abilityManager/napi_ability_manager.h
@@ -161,7 +161,6 @@ napi_value NAPI_QueryRecentAbilityMissionInfos(napi_env env, napi_callback_info
 napi_value NAPI_GetPreviousAbilityMissionInfos(napi_env env, napi_callback_info info);
 napi_value NAPI_RemoveMission(napi_env env, napi_callback_info info);
 napi_value NAPI_RemoveMissions(napi_env env, napi_callback_info info);
-napi_value NAPI_ClearMissions(napi_env env, napi_callback_info info);
 napi_value NAPI_MoveMissionToTop(napi_env env, napi_callback_info info);
 napi_value NAPI_KillProcessesByBundleName(napi_env env, napi_callback_info info);
 napi_value NAPI_ClearUpApplicationData(napi_env env, napi_callback_info info);
diff --git a/interfaces/kits/napi/aafwk/abilityManager/native_module.cpp b/interfaces/kits/napi/aafwk/abilityManager/native_module.cpp
index 088ba3be0189da17de6f317e3070f8a02591177c..08cb43573e60e3d979caf3f8b96fb4bfb033b0a6 100644
--- a/interfaces/kits/napi/aafwk/abilityManager/native_module.cpp
+++ b/interfaces/kits/napi/aafwk/abilityManager/native_module.cpp
@@ -49,7 +49,6 @@ static napi_value Init(napi_env env, napi_value exports)
         DECLARE_NAPI_FUNCTION("removeRecentTask", NAPI_RemoveMission),
         DECLARE_NAPI_FUNCTION("removeMissions", NAPI_RemoveMissions),
         DECLARE_NAPI_FUNCTION("deleteMissions", NAPI_RemoveMissions),
-        DECLARE_NAPI_FUNCTION("clearMissions", NAPI_ClearMissions),
         DECLARE_NAPI_FUNCTION("moveMissionToTop", NAPI_MoveMissionToTop),
         DECLARE_NAPI_FUNCTION("killProcessesByBundleName", NAPI_KillProcessesByBundleName),
         DECLARE_NAPI_FUNCTION("clearUpApplicationData", NAPI_ClearUpApplicationData),
diff --git a/services/abilitymgr/include/ability_manager_proxy.h b/services/abilitymgr/include/ability_manager_proxy.h
index 634ac10a38827266778aeb662184b605a2719774..75c42dc224351e87657a96c7f5772a5f38b2a300 100644
--- a/services/abilitymgr/include/ability_manager_proxy.h
+++ b/services/abilitymgr/include/ability_manager_proxy.h
@@ -320,14 +320,6 @@ public:
      */
     virtual int RemoveMission(int id) override;
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    virtual int RemoveStack(int id) override;
-
     /**
      * Kill the process immediately.
      *
diff --git a/services/abilitymgr/include/ability_manager_service.h b/services/abilitymgr/include/ability_manager_service.h
index 6899170bc2b9615a1964399abb6004ab5db8276d..5405f84e2035b5868290b4f535e94721c1265613 100644
--- a/services/abilitymgr/include/ability_manager_service.h
+++ b/services/abilitymgr/include/ability_manager_service.h
@@ -447,14 +447,6 @@ public:
      */
     virtual int RemoveMission(int id) override;
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    virtual int RemoveStack(int id) override;
-
     /**
      * Kill the process immediately.
      *
diff --git a/services/abilitymgr/include/ability_manager_stub.h b/services/abilitymgr/include/ability_manager_stub.h
index 76bc7812ecf3c057c1d02c0edbce9ee7341fb61d..d7e748889473a99ef7ce5b8c000dbf7c3500b122 100644
--- a/services/abilitymgr/include/ability_manager_stub.h
+++ b/services/abilitymgr/include/ability_manager_stub.h
@@ -69,7 +69,6 @@ private:
     int GetAllStackInfoInner(MessageParcel &data, MessageParcel &reply);
     int GetRecentMissionsInner(MessageParcel &data, MessageParcel &reply);
     int RemoveMissionInner(MessageParcel &data, MessageParcel &reply);
-    int RemoveStackInner(MessageParcel &data, MessageParcel &reply);
     int ScheduleCommandAbilityDoneInner(MessageParcel &data, MessageParcel &reply);
     int GetMissionSnapshotInner(MessageParcel &data, MessageParcel &reply);
     int AcquireDataAbilityInner(MessageParcel &data, MessageParcel &reply);
diff --git a/services/abilitymgr/include/ability_stack_manager.h b/services/abilitymgr/include/ability_stack_manager.h
index 32553b3b2ef299b49a8e7fe78ed1fc149a84ca6d..0514f144c41c113656a224acb9860d8b9b635d5e 100644
--- a/services/abilitymgr/include/ability_stack_manager.h
+++ b/services/abilitymgr/include/ability_stack_manager.h
@@ -244,14 +244,6 @@ public:
      */
     int RemoveMissionById(int missionId);
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    int RemoveStack(int stackId);
-
     /**
      * move the mission stack to the top.
      *
diff --git a/services/abilitymgr/src/ability_manager_client.cpp b/services/abilitymgr/src/ability_manager_client.cpp
index b3cabdb149b490ef0d184171f6c17a21a0d72c12..f6931c026121d287b98a532dd3f80ed34dc20ffb 100644
--- a/services/abilitymgr/src/ability_manager_client.cpp
+++ b/services/abilitymgr/src/ability_manager_client.cpp
@@ -343,13 +343,6 @@ ErrCode AbilityManagerClient::RemoveMissions(std::vector<int> missionId)
 
     return error;
 }
-
-ErrCode AbilityManagerClient::RemoveStack(int id)
-{
-    CHECK_REMOTE_OBJECT_AND_RETURN(remoteObject_, ABILITY_SERVICE_NOT_CONNECTED);
-    sptr<IAbilityManager> abms = iface_cast<IAbilityManager>(remoteObject_);
-    return abms->RemoveStack(id);
-}
 #endif
 
 ErrCode AbilityManagerClient::KillProcess(const std::string &bundleName)
diff --git a/services/abilitymgr/src/ability_manager_proxy.cpp b/services/abilitymgr/src/ability_manager_proxy.cpp
index 12120c09917b5646556f4cbf55f4b8cdff47520c..c651a2347bb3931d7a5d4011e94ad071abfebc99 100644
--- a/services/abilitymgr/src/ability_manager_proxy.cpp
+++ b/services/abilitymgr/src/ability_manager_proxy.cpp
@@ -842,28 +842,6 @@ int AbilityManagerProxy::RemoveMission(int id)
     return reply.ReadInt32();
 }
 
-int AbilityManagerProxy::RemoveStack(int id)
-{
-    int error;
-    MessageParcel data;
-    MessageParcel reply;
-    MessageOption option;
-
-    if (!WriteInterfaceToken(data)) {
-        return INNER_ERR;
-    }
-    if (!data.WriteInt32(id)) {
-        HILOG_ERROR("id write failed.");
-        return ERR_INVALID_VALUE;
-    }
-    error = Remote()->SendRequest(IAbilityManager::REMOVE_STACK, data, reply, option);
-    if (error != NO_ERROR) {
-        HILOG_ERROR("Send request error: %{public}d", error);
-        return error;
-    }
-    return reply.ReadInt32();
-}
-
 int AbilityManagerProxy::KillProcess(const std::string &bundleName)
 {
     MessageParcel data;
diff --git a/services/abilitymgr/src/ability_manager_service.cpp b/services/abilitymgr/src/ability_manager_service.cpp
index d82a86fe87866fd17b57976513a4a3b0abd79cf3..ca074604404e04a019345f686866018645b6f4ea 100644
--- a/services/abilitymgr/src/ability_manager_service.cpp
+++ b/services/abilitymgr/src/ability_manager_service.cpp
@@ -922,16 +922,6 @@ int AbilityManagerService::RemoveMission(int id)
     }
     return currentStackManager_->RemoveMissionById(id);
 }
-
-int AbilityManagerService::RemoveStack(int id)
-{
-    HILOG_INFO("Remove stack.");
-    if (id < 0) {
-        HILOG_ERROR("Stack id is invalid.");
-        return ERR_INVALID_VALUE;
-    }
-    return currentStackManager_->RemoveStack(id);
-}
 #endif
 
 int AbilityManagerService::ConnectAbility(
diff --git a/services/abilitymgr/src/ability_manager_stub.cpp b/services/abilitymgr/src/ability_manager_stub.cpp
index 9ad749d60d25045b73ddb372c13eb4734a6ea45d..bd27fe413700ca674dfd6abcd8076e059ad8f68a 100644
--- a/services/abilitymgr/src/ability_manager_stub.cpp
+++ b/services/abilitymgr/src/ability_manager_stub.cpp
@@ -53,7 +53,6 @@ void AbilityManagerStub::FirstStepInit()
     requestFuncMap_[LIST_STACK_INFO] = &AbilityManagerStub::GetAllStackInfoInner;
     requestFuncMap_[GET_RECENT_MISSION] = &AbilityManagerStub::GetRecentMissionsInner;
     requestFuncMap_[REMOVE_MISSION] = &AbilityManagerStub::RemoveMissionInner;
-    requestFuncMap_[REMOVE_STACK] = &AbilityManagerStub::RemoveStackInner;
     requestFuncMap_[COMMAND_ABILITY_DONE] = &AbilityManagerStub::ScheduleCommandAbilityDoneInner;
     requestFuncMap_[GET_MISSION_SNAPSHOT] = &AbilityManagerStub::GetMissionSnapshotInner;
     requestFuncMap_[ACQUIRE_DATA_ABILITY] = &AbilityManagerStub::AcquireDataAbilityInner;
@@ -313,17 +312,6 @@ int AbilityManagerStub::RemoveMissionInner(MessageParcel &data, MessageParcel &r
     return NO_ERROR;
 }
 
-int AbilityManagerStub::RemoveStackInner(MessageParcel &data, MessageParcel &reply)
-{
-    int id = data.ReadInt32();
-    int32_t result = RemoveStack(id);
-    if (!reply.WriteInt32(result)) {
-        HILOG_ERROR("remove stack error");
-        return ERR_INVALID_VALUE;
-    }
-    return NO_ERROR;
-}
-
 int AbilityManagerStub::ScheduleCommandAbilityDoneInner(MessageParcel &data, MessageParcel &reply)
 {
     auto token = data.ReadParcelable<IRemoteObject>();
diff --git a/services/abilitymgr/src/ability_stack_manager.cpp b/services/abilitymgr/src/ability_stack_manager.cpp
index b99cdbfb6a167de1bb44024d2d4c289b93a5e349..bfc41f2926545b1b2bcb75c66ec78d13bd289e2f 100644
--- a/services/abilitymgr/src/ability_stack_manager.cpp
+++ b/services/abilitymgr/src/ability_stack_manager.cpp
@@ -765,23 +765,6 @@ int AbilityStackManager::RemoveMissionByIdLocked(int missionId)
     return TerminateAbilityLocked(terminateLists);
 }
 
-int AbilityStackManager::RemoveStack(int stackId)
-{
-    HILOG_DEBUG("stackId : %{public}d", stackId);
-    std::lock_guard<std::recursive_mutex> guard(stackLock_);
-    if (stackId < MIN_MISSION_STACK_ID) {
-        HILOG_ERROR("stackId:%{public}d is invalid.", stackId);
-        return ERR_INVALID_VALUE;
-    }
-
-    if (lockMissionContainer_ && lockMissionContainer_->IsLockedMissionState()) {
-        HILOG_ERROR("current is lock mission state, refusing to operate other mission.");
-        return ERR_INVALID_VALUE;
-    }
-
-    return RemoveStackLocked(stackId);
-}
-
 int AbilityStackManager::RemoveStackLocked(int stackId)
 {
     HILOG_DEBUG("stackId : %{public}d", stackId);
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_client_test/ability_manager_stub_mock_test.h b/services/abilitymgr/test/unittest/phone/ability_manager_client_test/ability_manager_stub_mock_test.h
index f064283b3abda61a4ea1f8339c523e844ada0428..d0d6822a9a05ad6d2883febe2c9af528f7f52837 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_client_test/ability_manager_stub_mock_test.h
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_client_test/ability_manager_stub_mock_test.h
@@ -202,11 +202,6 @@ public:
         return 0;
     }
 
-    virtual int RemoveStack(int id)
-    {
-        return 0;
-    }
-
     virtual int KillProcess(const std::string &bundleName)
     {
         return 0;
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_proxy_test.cpp b/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_proxy_test.cpp
index 73d01f903856778d480eb355cd8b4021271ac928..4510d2a1716b877c1c185a1018584dd8ddf522c3 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_proxy_test.cpp
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_proxy_test.cpp
@@ -532,24 +532,6 @@ HWTEST_F(AbilityManagerProxyTest, AbilityManagerProxy_0023, TestSize.Level1)
     EXPECT_EQ(IAbilityManager::REMOVE_MISSION, mock_->code_);
 }
 
-/*
- * Feature: AbilityManagerService
- * Function: RemoveStack
- * SubFunction: NA
- * FunctionPoints: AbilityManagerService RemoveStack
- * EnvConditions: NA
- * CaseDescription: Verify the normal conditions of RemoveStack
- */
-HWTEST_F(AbilityManagerProxyTest, AbilityManagerProxy_0024, TestSize.Level1)
-{
-    EXPECT_CALL(*mock_, SendRequest(_, _, _, _))
-        .Times(1)
-        .WillOnce(Invoke(mock_.GetRefPtr(), &AbilityManagerStubMock::InvokeSendRequest));
-    proxy_->RemoveStack(1);
-
-    EXPECT_EQ(IAbilityManager::REMOVE_STACK, mock_->code_);
-}
-
 /*
  * Feature: AbilityManagerService
  * Function: MoveMissionToTop
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_stub_mock.h b/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_stub_mock.h
index 11cb38f66b76e0635a88a8040461bc2711c07368..bc045ed4edd82f6025ea1daeb1593decd4424036 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_stub_mock.h
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_proxy_test/ability_manager_stub_mock.h
@@ -202,11 +202,6 @@ public:
         return 0;
     }
 
-    virtual int RemoveStack(int id)
-    {
-        return 0;
-    }
-
     virtual int KillProcess(const std::string &bundleName)
     {
         return 0;
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_service_test/ability_manager_service_test.cpp b/services/abilitymgr/test/unittest/phone/ability_manager_service_test/ability_manager_service_test.cpp
index ae0b36b1d0f7c6b45bbd18344a2324b23abcad22..4eebf329c30b7b622f4c9bde458056edb571d6bc 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_service_test/ability_manager_service_test.cpp
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_service_test/ability_manager_service_test.cpp
@@ -797,54 +797,6 @@ HWTEST_F(AbilityManagerServiceTest, Interface_018, TestSize.Level1)
     EXPECT_EQ(info[0].topAbility.GetDeviceID(), want1.GetElement().GetDeviceID());
 }
 
-/*
- * Feature: AbilityManagerService
- * Function: RemoveStack
- * SubFunction: NA
- * FunctionPoints: AbilityManagerService RemoveStack
- * EnvConditions: NA
- * CaseDescription: 1.stackid < 0, RemoveStack failed
- *                  2.stackid no exist, RemoveStack failed
- *                  3.don't allow remove luncher mission stack
- */
-HWTEST_F(AbilityManagerServiceTest, Interface_019, TestSize.Level1)
-{
-    EXPECT_EQ(abilityMs_->RemoveStack(-1), OHOS::ERR_INVALID_VALUE);
-    EXPECT_EQ(abilityMs_->RemoveStack(INT_MAX), REMOVE_STACK_ID_NOT_EXIST);
-    EXPECT_EQ(abilityMs_->RemoveStack(0), REMOVE_STACK_LAUNCHER_DENIED);
-}
-
-/*
- * Feature: AbilityManagerService
- * Function: RemoveStack
- * SubFunction: NA
- * FunctionPoints: AbilityManagerService RemoveStack
- * EnvConditions: NA
- * CaseDescription: remove default stack success
- */
-HWTEST_F(AbilityManagerServiceTest, Interface_020, TestSize.Level1)
-{
-    Want want;
-    ElementName element("device", "com.ix.music", "MusicAbility");
-    want.SetElement(element);
-    auto result = StartAbility(want);
-    WaitUntilTaskFinished();
-    EXPECT_EQ(OHOS::ERR_OK, result);
-    auto stackManage = abilityMs_->GetStackManager();
-    stackManage->GetCurrentTopAbility()->SetAbilityState(OHOS::AAFwk::AbilityState::ACTIVE);
-
-    Want want1;
-    ElementName element1("device", "com.ix.music", "MusicAbility");
-    want1.SetElement(element1);
-    auto result1 = StartAbility(want);
-    WaitUntilTaskFinished();
-    EXPECT_EQ(OHOS::ERR_OK, result1);
-
-    EXPECT_EQ(stackManage->GetCurrentMissionStack()->GetMissionRecordCount(), 1);
-    EXPECT_EQ(abilityMs_->RemoveStack(1), ERR_OK);
-
-}
-
 /*
  * Feature: AbilityManagerService
  * Function: ConnectAbility
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_stub_test/ability_manager_stub_impl_mock.h b/services/abilitymgr/test/unittest/phone/ability_manager_stub_test/ability_manager_stub_impl_mock.h
index 1da93ac68b26ed05ad64451b7ca9d6e392927e62..d7af3387acfb11d6c543eca2f16fad9f3138808b 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_stub_test/ability_manager_stub_impl_mock.h
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_stub_test/ability_manager_stub_impl_mock.h
@@ -215,11 +215,6 @@ public:
         return 0;
     }
 
-    virtual int RemoveStack(int id)
-    {
-        return 0;
-    }
-
     virtual int KillProcess(const std::string &bundleName)
     {
         return 0;
diff --git a/services/abilitymgr/test/unittest/phone/ability_manager_test/ability_manager_stub_mock.h b/services/abilitymgr/test/unittest/phone/ability_manager_test/ability_manager_stub_mock.h
index ebae85c6f74f9240d50f6c5abc878fcf8f6baffc..99350177f83aa70a91506558155b2f9ca5272095 100644
--- a/services/abilitymgr/test/unittest/phone/ability_manager_test/ability_manager_stub_mock.h
+++ b/services/abilitymgr/test/unittest/phone/ability_manager_test/ability_manager_stub_mock.h
@@ -62,7 +62,6 @@ public:
     MOCK_METHOD3(GetRecentMissions, int(const int32_t, const int32_t, std::vector<AbilityMissionInfo> &));
     MOCK_METHOD2(GetMissionSnapshot, int(const int32_t, MissionSnapshotInfo &));
     MOCK_METHOD1(RemoveMission, int(int));
-    MOCK_METHOD1(RemoveStack, int(int));
     MOCK_METHOD1(MoveMissionToTop, int(int32_t));
     MOCK_METHOD1(KillProcess, int(const std::string &));
     MOCK_METHOD2(UninstallApp, int(const std::string &, int32_t));
diff --git a/services/abilitymgr/test/unittest/phone/ability_stack_manager_test/ability_stack_manager_test.cpp b/services/abilitymgr/test/unittest/phone/ability_stack_manager_test/ability_stack_manager_test.cpp
index 05d94121bd23b89f6f5e5299e19ed9c0da7dce60..6832bfbb17128302f520de87b5fbb4005e11e0fe 100644
--- a/services/abilitymgr/test/unittest/phone/ability_stack_manager_test/ability_stack_manager_test.cpp
+++ b/services/abilitymgr/test/unittest/phone/ability_stack_manager_test/ability_stack_manager_test.cpp
@@ -1585,76 +1585,11 @@ HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_044, TestSize.
 
 /*
  * Feature: AbilityStackManager
- * Function: RemoveStack
- * SubFunction: NA
- * FunctionPoints: RemoveStack
- * EnvConditions: NA
- * CaseDescription: Failed to verify RemoveStack
- */
-HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_045, TestSize.Level1)
-{
-    stackManager_->Init();
-    auto result = stackManager_->StartAbility(launcherAbilityRequest_);
-    EXPECT_EQ(ERR_OK, result);
-    auto firstTopAbility = stackManager_->GetCurrentTopAbility();
-    firstTopAbility->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    result = stackManager_->StartAbility(musicAbilityRequest_);
-    EXPECT_EQ(ERR_OK, result);
-    auto secondTopAbility = stackManager_->GetCurrentTopAbility();
-    secondTopAbility->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    result = stackManager_->RemoveStack(-1);
-    EXPECT_EQ(ERR_INVALID_VALUE, result);
-
-    result = stackManager_->RemoveStack(10);
-    EXPECT_EQ(REMOVE_STACK_ID_NOT_EXIST, result);
-
-    result = stackManager_->RemoveStack(0);
-    EXPECT_EQ(REMOVE_STACK_LAUNCHER_DENIED, result);
-
-    stackManager_->missionStackList_.clear();
-    result = stackManager_->RemoveStack(1);
-    EXPECT_EQ(MISSION_STACK_LIST_IS_EMPTY, result);
-}
-
-/*
- * Feature: AbilityStackManager
- * Function: RemoveStack
- * SubFunction: NA
- * FunctionPoints: RemoveStack
- * EnvConditions: NA
- * CaseDescription: Succeeded to verify RemoveStack
- */
-HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_046, TestSize.Level1)
-{
-    stackManager_->Init();
-    auto result = stackManager_->StartAbility(launcherAbilityRequest_);
-    EXPECT_EQ(ERR_OK, result);
-    auto firstTopAbility = stackManager_->GetCurrentTopAbility();
-    firstTopAbility->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    result = stackManager_->StartAbility(musicAbilityRequest_);
-    EXPECT_EQ(ERR_OK, result);
-    auto secondTopAbility = stackManager_->GetCurrentTopAbility();
-    secondTopAbility->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    result = stackManager_->StartAbility(launcherAbilityRequest_);
-    EXPECT_EQ(ERR_OK, result);
-    auto topAbility = stackManager_->GetCurrentTopAbility();
-    topAbility->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    result = stackManager_->RemoveStack(1);
-    EXPECT_EQ(ERR_OK, result);
-}
-
-/*
- * Feature: AbilityStackManager
- * Function: RemoveStack
+ * Function: StartAbility
  * SubFunction: NA
- * FunctionPoints: RemoveStack
+ * FunctionPoints: StartAbility
  * EnvConditions: NA
- * CaseDescription: Succeeded to verify RemoveStack
+ * CaseDescription: Succeeded to verify StartAbility
  */
 HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_047, TestSize.Level1)
 {
@@ -1675,11 +1610,11 @@ HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_047, TestSize.
 
 /*
  * Feature: AbilityStackManager
- * Function: RemoveStack
+ * Function: StartAbility
  * SubFunction: NA
- * FunctionPoints: RemoveStack
+ * FunctionPoints: StartAbility
  * EnvConditions: NA
- * CaseDescription: Succeeded to verify RemoveStack
+ * CaseDescription: Succeeded to verify StartAbility
  */
 HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_048, TestSize.Level1)
 {
@@ -1740,11 +1675,11 @@ HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_048, TestSize.
 
 /*
  * Feature: AbilityStackManager
- * Function: RemoveStack
+ * Function: StartAbility
  * SubFunction: NA
- * FunctionPoints: RemoveStack
+ * FunctionPoints: StartAbility
  * EnvConditions: NA
- * CaseDescription: Succeeded to verify RemoveStack
+ * CaseDescription: Succeeded to verify StartAbility
  */
 HWTEST_F(AbilityStackManagerTest, ability_stack_manager_operating_049, TestSize.Level1)
 {
diff --git a/services/formmgr/test/mock/include/mock_ability_manager.h b/services/formmgr/test/mock/include/mock_ability_manager.h
index 5a773d2479e4ff640ae7cd1c6c291760aed84ce5..e3f85d151c6c740e63b495bd8ae33dd6884c4d26 100644
--- a/services/formmgr/test/mock/include/mock_ability_manager.h
+++ b/services/formmgr/test/mock/include/mock_ability_manager.h
@@ -223,10 +223,6 @@ public:
     {
         return 0;
     }
-    virtual int RemoveStack(int id)
-    {
-        return 0;
-    }
     virtual int KillProcess(const std::string &bundleName)
     {
         return 0;
@@ -606,10 +602,6 @@ public:
     {
         return 0;
     }
-    virtual int RemoveStack(int id)
-    {
-        return 0;
-    }
     virtual int KillProcess(const std::string &bundleName)
     {
         return 0;
diff --git a/services/test/mock/include/appmgr/mock_ability_mgr_host.h b/services/test/mock/include/appmgr/mock_ability_mgr_host.h
index 8101cdcc27a61aed4e78aad6f0929554e6105a2a..5a080637db4b4253831e6572b0837dd0603580d0 100644
--- a/services/test/mock/include/appmgr/mock_ability_mgr_host.h
+++ b/services/test/mock/include/appmgr/mock_ability_mgr_host.h
@@ -142,10 +142,6 @@ public:
     {
         return 0;
     }
-    virtual int RemoveStack(int id) override
-    {
-        return 0;
-    }
     virtual int KillProcess(const std::string &bundleName) override
     {
         return 0;
diff --git a/services/test/mock/include/mock_ability_manager_proxy.h b/services/test/mock/include/mock_ability_manager_proxy.h
index 869639d68d49c448e6bed9b173cd8d1c7925d01b..8a38505adca4d7496b66deafe361e0a6272aad88 100644
--- a/services/test/mock/include/mock_ability_manager_proxy.h
+++ b/services/test/mock/include/mock_ability_manager_proxy.h
@@ -53,7 +53,6 @@ public:
     MOCK_METHOD3(GetRecentMissions, int(const int32_t, const int32_t, std::vector<RecentMissionInfo> &));
     MOCK_METHOD2(GetMissionSnapshot, int(const int32_t, MissionPixelMap &));
     MOCK_METHOD1(RemoveMission, int(int));
-    MOCK_METHOD1(RemoveStack, int(int));
     MOCK_METHOD1(MoveMissionToTop, int(int32_t));
     MOCK_METHOD1(GetMissionIdByToken, int32_t(const sptr<IRemoteObject> &token));
     MOCK_METHOD1(KillProcess, int(const std::string &));
diff --git a/services/test/mock/include/mock_ability_mgr_service.h b/services/test/mock/include/mock_ability_mgr_service.h
index c4609ad5c5ab8ba1b5f055b19d6e342f29ccf67c..fd35fee42cf845f3642ffdd7780913aecefa422b 100644
--- a/services/test/mock/include/mock_ability_mgr_service.h
+++ b/services/test/mock/include/mock_ability_mgr_service.h
@@ -61,7 +61,6 @@ public:
     MOCK_METHOD3(GetRecentMissions, int(const int32_t, const int32_t, std::vector<AbilityMissionInfo> &));
     MOCK_METHOD2(GetMissionSnapshot, int(const int32_t, MissionPixelMap &));
     MOCK_METHOD1(RemoveMission, int(int));
-    MOCK_METHOD1(RemoveStack, int(int));
     MOCK_METHOD1(MoveMissionToTop, int(int32_t));
     MOCK_METHOD1(GetMissionIdByToken, int32_t(const sptr<IRemoteObject> &token));
     MOCK_METHOD1(KillProcess, int(const std::string &));
diff --git a/services/test/moduletest/ability_stack_test/ability_stack_module_test.cpp b/services/test/moduletest/ability_stack_test/ability_stack_module_test.cpp
index 268565fdf0a829b865f737f98a03b9c812a9df7c..47e4f0bbf1ee1e1ca1479d4fb9431133015fb132 100644
--- a/services/test/moduletest/ability_stack_test/ability_stack_module_test.cpp
+++ b/services/test/moduletest/ability_stack_test/ability_stack_module_test.cpp
@@ -3487,60 +3487,6 @@ HWTEST_F(AbilityStackModuleTest, ability_stack_test_068, TestSize.Level1)
     EXPECT_EQ(stackManager_->GetCurrentTopAbility(), topAbilityRecordMusic);
 }
 
-/*
- * Feature: AaFwk
- * Function:RemoveStack
- * SubFunction:Remove Stack
- * FunctionPoints:
- * EnvConditions: NA
- * CaseDescription:Remove Stack
- */
-HWTEST_F(AbilityStackModuleTest, ability_stack_test_069, TestSize.Level1)
-{
-    stackManager_->isMultiWinMoving_ = false;
-    // start launcher
-    auto worldAbilityRequest = GenerateAbilityRequest("device", "WorldAbility", "world", "com.ix.hiworld");
-    auto ref = stackManager_->StartAbility(worldAbilityRequest);
-    EXPECT_EQ(ERR_OK, ref);
-    auto abilityRecordWorld = stackManager_->GetCurrentTopAbility();
-    EXPECT_TRUE(abilityRecordWorld);
-    abilityRecordWorld->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    auto musicTopAbilityRequest = GenerateAbilityRequest("device", "MusicTopAbility", "musicTop", "com.ix.hiTopMusic");
-    ref = stackManager_->StartAbility(musicTopAbilityRequest);
-    EXPECT_EQ(ERR_OK, ref);
-    auto topAbilityRecordMusic = stackManager_->GetCurrentTopAbility();
-    EXPECT_TRUE(topAbilityRecordMusic);
-    topAbilityRecordMusic->SetAbilityState(OHOS::AAFwk::ACTIVE);
-
-    std::shared_ptr<MissionStack> targetStack = stackManager_->GetTargetMissionStack(musicTopAbilityRequest);
-    EXPECT_EQ(stackManager_->currentMissionStack_, targetStack);
-
-    // start split ability
-    auto radioAbilityRequest = GenerateAbilityRequest("device", "RadioAbility", "radio", "com.ix.hiRadio");
-    auto abilityStartSetting = AbilityStartSetting::GetEmptySetting();
-    EXPECT_TRUE(abilityStartSetting);
-    abilityStartSetting->AddProperty(AbilityStartSetting::WINDOW_MODE_KEY,
-        std::to_string(AbilityWindowConfiguration::MULTI_WINDOW_DISPLAY_SECONDARY));
-    radioAbilityRequest.startSetting = abilityStartSetting;
-    ref = stackManager_->StartAbility(radioAbilityRequest);
-    EXPECT_EQ(ERR_OK, ref);
-
-    auto topAbilityRecordRadio = stackManager_->GetCurrentTopAbility();
-    EXPECT_TRUE(topAbilityRecordRadio);
-    topAbilityRecordRadio->SetAbilityState(OHOS::AAFwk::ACTIVE);
-    auto topMissionRecordRadio = stackManager_->GetTopMissionRecord();
-    EXPECT_TRUE(topMissionRecordRadio);
-
-#ifdef SUPPORT_GRAPHICS
-    EXPECT_EQ(stackManager_->curSysWindowMode_, SystemWindowMode::SPLITSCREEN_WINDOW_MODE);
-#endif
-
-    auto stackId = topMissionRecordRadio->GetMissionStack()->GetMissionStackId();
-    stackManager_->RemoveStack(stackId);
-    EXPECT_EQ(stackManager_->GetCurrentTopAbility(), abilityRecordWorld);
-}
-
 /*
  * Feature: AaFwk
  * Function:OnTimeOut
diff --git a/services/test/moduletest/ipc_ability_mgr_test/ipc_ability_mgr_module_test.cpp b/services/test/moduletest/ipc_ability_mgr_test/ipc_ability_mgr_module_test.cpp
index fde03e58f83ff571eaeed57a5050f29b9a513ed5..48f97ade8b32f7952cdcaeffd2513cda68ff7ef3 100644
--- a/services/test/moduletest/ipc_ability_mgr_test/ipc_ability_mgr_module_test.cpp
+++ b/services/test/moduletest/ipc_ability_mgr_test/ipc_ability_mgr_module_test.cpp
@@ -517,32 +517,6 @@ HWTEST_F(IpcAbilityMgrModuleTest, AbilityMgrService_IPC_016, TestSize.Level1)
     GTEST_LOG_(INFO) << "IpcAbilityMgrModuleTest AbilityMgrService_IPC_016 end";
 }
 
-/*
- * Feature: AAFwk
- * Function: AbilityManagerService
- * SubFunction: IPC of client and server
- * FunctionPoints: RemoveStack
- * EnvConditions: NA
- * CaseDescription: verify RemoveStack IPC between client and server.
- */
-HWTEST_F(IpcAbilityMgrModuleTest, AbilityMgrService_IPC_017, TestSize.Level1)
-{
-    GTEST_LOG_(INFO) << "IpcAbilityMgrModuleTest AbilityMgrService_IPC_017 start";
-
-    for (int i = 0; i < COUNT; i++) {
-        sptr<MockAbilityMgrService> mockAbilityMgr(new MockAbilityMgrService());
-        sptr<IAbilityManager> abilityMgrClient = iface_cast<IAbilityManager>(mockAbilityMgr);
-
-        EXPECT_CALL(*mockAbilityMgr, RemoveStack(_))
-            .Times(1)
-            .WillOnce(InvokeWithoutArgs(mockAbilityMgr.GetRefPtr(), &MockAbilityMgrService::Post));
-        abilityMgrClient->RemoveStack(1);
-        mockAbilityMgr->Wait();
-    }
-
-    GTEST_LOG_(INFO) << "IpcAbilityMgrModuleTest AbilityMgrService_IPC_017 end";
-}
-
 /*
  * Feature: AAFwk
  * Function: AbilityManagerService
diff --git a/test/systemtest/common/ams/ams_app_process_manage_test/ams_app_process_manage_test.cpp b/test/systemtest/common/ams/ams_app_process_manage_test/ams_app_process_manage_test.cpp
index c1b1e6c18155eaf1b74b52b067f288136a5aa447..6245935d39fe24a3dc342ee19f7d2ba4c446e710 100644
--- a/test/systemtest/common/ams/ams_app_process_manage_test/ams_app_process_manage_test.cpp
+++ b/test/systemtest/common/ams/ams_app_process_manage_test/ams_app_process_manage_test.cpp
@@ -126,7 +126,6 @@ void AmsAppProcessManageTest::SetUp(void)
 void AmsAppProcessManageTest::TearDown(void)
 {
     GTEST_LOG_(INFO) << "void AmsAppProcessManageTest::TearDown(void)";
-    STAbilityUtil::RemoveStack(1, abilityMs_, WAIT_TIME, WAIT_LAUNCHER_OK);
     std::vector<std::string> vecBundleName;
     for (const auto &suffix : bundleNameSuffix) {
         vecBundleName.push_back(bundleNameBase + suffix);
diff --git a/test/systemtest/common/ams/ams_kit_test/acts_ams_kit_test.cpp b/test/systemtest/common/ams/ams_kit_test/acts_ams_kit_test.cpp
index abd73ea412c04147c77c57cb3ba4c2d83bf8abbc..43423fcb8d1c7684226589bd651ace7d5db313eb 100644
--- a/test/systemtest/common/ams/ams_kit_test/acts_ams_kit_test.cpp
+++ b/test/systemtest/common/ams/ams_kit_test/acts_ams_kit_test.cpp
@@ -148,7 +148,6 @@ void ActsAmsKitTest::SetUp(void)
 
 void ActsAmsKitTest::TearDown(void)
 {
-    STAbilityUtil::RemoveStack(1, abilityMs, WAIT_TIME, WAIT_LAUNCHER_OK);
     CleanMsg();
 }
 
@@ -2023,59 +2022,3 @@ HWTEST_F(ActsAmsKitTest, AMS_Page_Application_2600, Function | MediumTest | Leve
         }
     }
 }
-
-/**
- * @tc.number    : AMS_Page_Application_2700
- * @tc.name      : OHOSApplicationApi::Lifecycle callback function
- * @tc.desc      : 1.Control the life cycle of the ability
- *                 2.Application registration capability life cycle callback
- *                 3.The callback function corresponding to the registered class will be called
- */
-HWTEST_F(ActsAmsKitTest, AMS_Page_Application_2700, Function | MediumTest | Level1)
-{
-    for (int i = 1; i <= stLevel_.AMSLevel; i++) {
-        MAP_STR_STR params;
-        params["targetBundle"] = bundleName2;
-        params["targetAbility"] = thirdAbilityName;
-        Want want = STAbilityUtil::MakeWant("device", sixthAbilityName, bundleName2, params);
-        STAbilityUtil::StartAbility(want, abilityMs);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityActive, 0), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityInactive, 0), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, thirdAbilityName + g_onAbilityStart, 0), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, thirdAbilityName + g_onAbilityActive, 0), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityBackground, 0), 0);
-        CleanMsg();
-        STAbilityUtil::RemoveStack(1, abilityMs, WAIT_TIME, WAIT_LAUNCHER_OK);
-    }
-}
-
-/**
- * @tc.number    : AMS_Page_Application_2800
- * @tc.name      : OHOSApplicationApi::Lifecycle callback function
- * @tc.desc      : 1.Control the life cycle of the ability
- *                 2.Application registration capability life cycle callback
- *                 3.The callback function corresponding to the registered class will be called
- */
-HWTEST_F(ActsAmsKitTest, AMS_Page_Application_2800, Function | MediumTest | Level1)
-{
-    for (int i = 1; i <= stLevel_.AMSLevel; i++) {
-        MAP_STR_STR params;
-        int onStopWantCount = 1;
-        params["targetBundle"] = bundleName3;
-        params["targetAbility"] = abilityNameBase;
-        Want want = STAbilityUtil::MakeWant("device", sixthAbilityName, bundleName2, params);
-        STAbilityUtil::StartAbility(want, abilityMs);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityActive, 0), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityInactive, 0), 0);
-        EXPECT_EQ(
-            STAbilityUtil::WaitCompleted(abilityEvent, abilityNameBase + g_abilityStateOnActive, onStopWantCount), 0);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityBackground, 0), 0);
-        STAbilityUtil::StopAbility(terminatePageAbility, 0, abilityNameBase);
-        EXPECT_EQ(STAbilityUtil::WaitCompleted(abilityEvent, sixthAbilityName + g_onAbilityActive, 0), 0);
-        EXPECT_EQ(
-            STAbilityUtil::WaitCompleted(abilityEvent, abilityNameBase + g_abilityStateOnStop, onStopWantCount), 0);
-
-        CleanMsg();
-        STAbilityUtil::RemoveStack(1, abilityMs, WAIT_TIME, WAIT_LAUNCHER_OK);
-    }
-}
\ No newline at end of file
diff --git a/test/systemtest/common/ams/ams_page_ability_test/ams_page_ability_test.cpp b/test/systemtest/common/ams/ams_page_ability_test/ams_page_ability_test.cpp
index 00988b712d761befd296cd70c6be05077387eafc..f7e2f859586e8b8df8534ea4ff78e5d25521f359 100644
--- a/test/systemtest/common/ams/ams_page_ability_test/ams_page_ability_test.cpp
+++ b/test/systemtest/common/ams/ams_page_ability_test/ams_page_ability_test.cpp
@@ -177,7 +177,6 @@ void AmsPageAbilityTest::SetUp(void)
 void AmsPageAbilityTest::TearDown(void)
 {
     GTEST_LOG_(INFO) << "void AmsPageAbilityTest::TearDown(void)";
-    STAbilityUtil::RemoveStack(1, abilityMs_, WAIT_TIME, WAIT_LAUNCHER_OK);
     std::vector<std::string> vecBundleName;
     for (const auto &suffix : bundleNameSuffix) {
         vecBundleName.push_back(bundleNameBase + suffix);
diff --git a/test/systemtest/common/ams/ams_power_test/ams_power_test.cpp b/test/systemtest/common/ams/ams_power_test/ams_power_test.cpp
index c3448baf7114c82d688835783fa0b7986b58565e..66b991c7daa1f41bc55b58c4829a33b1240c1793 100644
--- a/test/systemtest/common/ams/ams_power_test/ams_power_test.cpp
+++ b/test/systemtest/common/ams/ams_power_test/ams_power_test.cpp
@@ -159,7 +159,6 @@ void AmsPowerTest::SetUp(void)
 void AmsPowerTest::TearDown(void)
 {
     GTEST_LOG_(INFO) << "void AmsPowerTest::TearDown(void)";
-    STAbilityUtil::RemoveStack(1, abilityMs_, WAIT_TIME, WAIT_LAUNCHER_OK);
     std::vector<std::string> vecBundleName;
     for (const auto &suffix : bundleNameSuffix) {
         vecBundleName.push_back(bundleNameBase + suffix);
diff --git a/test/systemtest/common/ams/tool/include/st_ability_util.h b/test/systemtest/common/ams/tool/include/st_ability_util.h
index f76e49f317abc0e790c81740d5f687f74c962de7..6c1647af4e0d5c486afdcc88a09c019086da69f3 100644
--- a/test/systemtest/common/ams/tool/include/st_ability_util.h
+++ b/test/systemtest/common/ams/tool/include/st_ability_util.h
@@ -272,17 +272,6 @@ public:
      */
     static ErrCode StopServiceAbility(const AAFwk::Want &want, unsigned int usec = 0);
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @param  {sptr<AAFwk::IAbilityManager>} abilityMs                  : Ability Manager Service ptr
-     * @param  {time_t} delay                  : Waiting time for ability to GetAppProcessInfo (milliseconds)
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    static int RemoveStack(int id, sptr<AAFwk::IAbilityManager> &abilityMs, const time_t &backHmoeDelay = 0,
-        const time_t &removeDelay = 0);
-
     /**
      *
      * @param  {string} bundleFilePath                  : Hap File Name
diff --git a/test/systemtest/common/ams/tool/src/st_ability_util.cpp b/test/systemtest/common/ams/tool/src/st_ability_util.cpp
index 06c7694f6e585d52bda984a0528084ae3b435342..f8596103f67b2cfbab60121c32b3557bb22cdd9f 100644
--- a/test/systemtest/common/ams/tool/src/st_ability_util.cpp
+++ b/test/systemtest/common/ams/tool/src/st_ability_util.cpp
@@ -368,22 +368,6 @@ void STAbilityUtil::PullOperatorFromVector(StOperator &ParentOperator, std::vect
     }
 }
 
-int STAbilityUtil::RemoveStack(
-    int id, sptr<AAFwk::IAbilityManager> &abilityMs, const time_t &backHmoeDelay, const time_t &removeDelay)
-{
-    Want wantEntity;
-    wantEntity.AddEntity(Want::FLAG_HOME_INTENT_FROM_SYSTEM);
-    StartAbility(wantEntity, abilityMs);
-    std::this_thread::sleep_for(std::chrono::milliseconds(backHmoeDelay));
-    if (!abilityMs) {
-        HILOG_INFO("RemoveStack abilityMs nullptr");
-        return OHOS::ERR_INVALID_VALUE;
-    }
-    int result = abilityMs->RemoveStack(id);
-    std::this_thread::sleep_for(std::chrono::milliseconds(removeDelay));
-    return result;
-}
-
 InstallToolStatusReceiver::InstallToolStatusReceiver()
 {
     std::cout << "create status receiver instance" << std::endl;
diff --git a/test/systemtest/common/fms/common/include/system_test_form_util.h b/test/systemtest/common/fms/common/include/system_test_form_util.h
index 2e4f801581eb130a7a32053550d293d204accfe5..3713e8010976c769577487b000be0bbb8fde8cac 100644
--- a/test/systemtest/common/fms/common/include/system_test_form_util.h
+++ b/test/systemtest/common/fms/common/include/system_test_form_util.h
@@ -258,17 +258,6 @@ public:
      */
     static ErrCode StopServiceAbility(const AAFwk::Want &want, unsigned int usec = 0);
 
-    /**
-     * Remove the specified mission stack by stack id
-     *
-     * @param id.
-     * @param  {sptr<AAFwk::IAbilityManager>} abilityMs                  : Ability Manager Service ptr
-     * @param  {time_t} delay                  : Waiting time for ability to GetAppProcessInfo (milliseconds)
-     * @return Returns ERR_OK on success, others on failure.
-     */
-    static int RemoveStack(int id, sptr<AAFwk::IAbilityManager> &abilityMs, const time_t &backHmoeDelay = 0,
-        const time_t &removeDelay = 0);
-
     /**
      *
      * @param  {string} bundleFilePath                  : Hap File Name
diff --git a/test/systemtest/common/fms/common/src/system_test_form_util.cpp b/test/systemtest/common/fms/common/src/system_test_form_util.cpp
index dd641b8f4d44e171c18700c83a8dd614544c0fc0..6b319666f55788f590dc4fc71f783cf480e7ee57 100755
--- a/test/systemtest/common/fms/common/src/system_test_form_util.cpp
+++ b/test/systemtest/common/fms/common/src/system_test_form_util.cpp
@@ -315,22 +315,6 @@ void SystemTestFormUtil::CleanMsg(FormEvent &event)
     return event.Clean();
 }
 
-int SystemTestFormUtil::RemoveStack(
-    int id, sptr<AAFwk::IAbilityManager> &abilityMs, const time_t &backHmoeDelay, const time_t &removeDelay)
-{
-    Want wantEntity;
-    wantEntity.AddEntity(Want::FLAG_HOME_INTENT_FROM_SYSTEM);
-    StartAbility(wantEntity, abilityMs);
-    std::this_thread::sleep_for(std::chrono::milliseconds(backHmoeDelay));
-    if (!abilityMs) {
-        HILOG_INFO("RemoveStack abilityMs nullptr");
-        return OHOS::ERR_INVALID_VALUE;
-    }
-    int result = abilityMs->RemoveStack(id);
-    std::this_thread::sleep_for(std::chrono::milliseconds(removeDelay));
-    return result;
-}
-
 const std::string MSG_SUCCESS = "[SUCCESS]";
 void SystemTestFormUtil::Install(const std::string &bundleFilePath, const InstallFlag installFlag)
 {
diff --git a/tools/test/mock/mock_ability_manager_stub.h b/tools/test/mock/mock_ability_manager_stub.h
index e900d080e2862c2c3650edff5669f37d5c2a382c..1e7275d9eb7f7b3c37aa3be88fafe84ee22641f4 100644
--- a/tools/test/mock/mock_ability_manager_stub.h
+++ b/tools/test/mock/mock_ability_manager_stub.h
@@ -83,7 +83,6 @@ public:
     MOCK_METHOD2(GetMissionSnapshot, int(const int32_t missionId, MissionPixelMap &missionPixelMap));
     MOCK_METHOD1(MoveMissionToTop, int(int32_t missionId));
     MOCK_METHOD1(RemoveMission, int(int id));
-    MOCK_METHOD1(RemoveStack, int(int id));
     MOCK_METHOD1(KillProcess, int(const std::string &bundleName));
     MOCK_METHOD2(UninstallApp, int(const std::string &bundleName, int32_t uid));