diff --git a/frameworks/native/inputmethod_controller/IInputMethodSystemAbility.idl b/frameworks/native/inputmethod_controller/IInputMethodSystemAbility.idl
index e24a1faf09133d99277388888ec00e2e5073a503..cbf590478d40b39d6f38f0ecb770f1a0f7b70ca3 100644
--- a/frameworks/native/inputmethod_controller/IInputMethodSystemAbility.idl
+++ b/frameworks/native/inputmethod_controller/IInputMethodSystemAbility.idl
@@ -60,6 +60,7 @@ interface OHOS.MiscServices.IInputMethodSystemAbility {
     void EnableIme([in] String bundleName, [out] boolean resultValue);
     void ConnectSystemCmd([in] IRemoteObject channel, [out] IRemoteObject agent);
     void GetInputMethodState([out] int state);
+    void UpdateBigMemoryState([in] int memoryState);
     void IsSystemApp([out] boolean resultValue);
     void HideCurrentInputDeprecated();
     void ShowCurrentInputDeprecated();
diff --git a/frameworks/native/inputmethod_controller/src/input_method_controller.cpp b/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
index c9009bee9c453f7fac1e6d6c38967672f99ffdd0..0f1ece802bf9b420d42773036d5de1c8648be5fd 100644
--- a/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
+++ b/frameworks/native/inputmethod_controller/src/input_method_controller.cpp
@@ -1626,6 +1626,17 @@ int32_t InputMethodController::GetInputMethodState(EnabledStatus &state)
     return ret;
 }
 
+int32_t InputMethodController::UpdateBigMemoryState(const int32_t memoryState)
+{
+    IMSA_HILOGD("called.");
+    auto proxy = GetSystemAbilityProxy();
+    if (proxy == nullptr) {
+        IMSA_HILOGE("proxy is nullptr");
+        return ErrorCode::ERROR_NULL_POINTER;
+    }
+    return proxy->UpdateBigMemoryState(memoryState);
+}
+
 int32_t InputMethodController::SetPreviewText(const std::string &text, const Range &range)
 {
     auto ret = SetPreviewTextInner(text, range);
diff --git a/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h b/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
index b14b45adbb56fb8007fd19f4959e99de9cb84c62..7fccd3d8a51cf5747823b46aca7751142710bced 100644
--- a/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
+++ b/interfaces/inner_api/inputmethod_controller/include/input_method_controller.h
@@ -907,6 +907,8 @@ public:
 
     IMF_API void ReportBaseTextOperation(int32_t eventCode, int32_t errCode);
 
+    IMF_API int32_t UpdateBigMemoryState(const int32_t memoryState);
+
     IMF_API void UpdateTextPreviewState(bool isSupport);
 
     /**
diff --git a/services/include/input_method_system_ability.h b/services/include/input_method_system_ability.h
index 3ccc7346f6c1827135dd748785a4bc9a8738e139..ebc13e1871140d600f1de5713b6b848c6aa96065 100644
--- a/services/include/input_method_system_ability.h
+++ b/services/include/input_method_system_ability.h
@@ -88,6 +88,7 @@ public:
     ErrCode EnableIme(const std::string &bundleName, bool& resultValue) override;
     ErrCode GetInputMethodState(int32_t &status) override;
     ErrCode IsSystemApp(bool& resultValue) override;
+    ErrCode UpdateBigMemoryState(const int32_t memoryState) override;
     int32_t RegisterProxyIme(
         uint64_t displayId, const sptr<IInputMethodCore> &core, const sptr<IRemoteObject> &agent) override;
     int32_t UnregisterProxyIme(uint64_t displayId) override;
diff --git a/services/include/peruser_session.h b/services/include/peruser_session.h
index c7de5b2fdc30df8b7158d1b2e3782d40d522b582..964e24e36377b540a76646d28393deb4bd3e8617 100644
--- a/services/include/peruser_session.h
+++ b/services/include/peruser_session.h
@@ -55,6 +55,10 @@ enum class ImeAction : uint32_t {
     DO_ACTION_IN_NULL_IME_DATA,
     DO_ACTION_IN_IME_EVENT_CONVERT_FAILED,
 };
+enum BigMemoryState : int32_t {
+    BIG_MEMORY_START = 2,
+    BIG_MEMORY_END = 3,
+};
 struct ImeData {
     static constexpr int64_t START_TIME_OUT = 8000;
     sptr<IInputMethodCore> core{ nullptr };
@@ -149,6 +153,7 @@ public:
     int32_t SpecialSendPrivateData(const std::unordered_map<std::string, PrivateDataValue> &privateCommand);
     uint64_t GetDisplayGroupId(uint64_t displayId);
     bool IsDefaultDisplayGroup(uint64_t displayId);
+    int32_t UpdateBigMemoryState(const int32_t memoryState);
 
 private:
     struct ResetManager {
@@ -277,6 +282,7 @@ private:
     std::atomic<uint64_t> agentDisplayId_{ DEFAULT_DISPLAY_ID };
     std::mutex clientGroupLock_{};
     std::unordered_map<uint64_t, std::shared_ptr<ClientGroup>> clientGroupMap_;
+    std::atomic<int32_t> memoryState_ = BigMemoryState::BIG_MEMORY_END;
 };
 } // namespace MiscServices
 } // namespace OHOS
diff --git a/services/src/input_method_system_ability.cpp b/services/src/input_method_system_ability.cpp
index a16e64851b433f605adfee310347936c076c09b3..171a7beb905b13b48947eea9bff393d925cfd66e 100644
--- a/services/src/input_method_system_ability.cpp
+++ b/services/src/input_method_system_ability.cpp
@@ -2453,6 +2453,18 @@ ErrCode InputMethodSystemAbility::GetInputMethodState(int32_t& status)
     return ErrorCode::NO_ERROR;
 }
 
+int32_t InputMethodSystemAbility::UpdateBigMemoryState(const int32_t memoryState)
+{
+    IMSA_HILOGD("UpdateBigMemory start.");
+    auto userId = GetCallingUserId();
+    auto session = UserSessionManager::GetInstance().GetUserSession(userId_);
+    if (session == nullptr) {
+        IMSA_HILOGE("%{public}d session is nullptr.", userId);
+        return ErrorCode::ERROR_NULL_POINTER;
+    }
+    return session->UpdateBigMemoryState(memoryState);
+}
+
 int32_t InputMethodSystemAbility::GetInputMethodState(
     int32_t userId, const std::string &bundleName, EnabledStatus &status)
 {
diff --git a/services/src/peruser_session.cpp b/services/src/peruser_session.cpp
index 9fe291ebc51c8b195db0e36b008a3927f766ed4a..50223e97041b4ded15c3f2633894a997f45404bb 100644
--- a/services/src/peruser_session.cpp
+++ b/services/src/peruser_session.cpp
@@ -766,6 +766,20 @@ int32_t PerUserSession::OnUnregisterProxyIme(uint64_t displayId)
     return ErrorCode::NO_ERROR;
 }
 
+int32_t PerUserSession::UpdateBigMemoryState(const int32_t memoryState)
+{
+    if (memoryState_ == memoryState) {
+        IMSA_HILOGI("big memory state: Duplicate message.");
+        return ErrorCode::NO_ERROR;
+    }
+    memoryState_ = memoryState;
+    IMSA_HILOGI("big memory state: %{public}d", memoryState);
+    if (memoryState_ == BigMemoryState::BIG_MEMORY_END) {
+        StartImeIfInstalled();
+    }
+    return ErrorCode::NO_ERROR;
+}
+
 int32_t PerUserSession::OnUnRegisteredProxyIme(UnRegisteredType type, const sptr<IInputMethodCore> &core)
 {
     IMSA_HILOGD("proxy unregister type: %{public}d.", type);
@@ -823,6 +837,10 @@ void PerUserSession::StartImeInImeDied()
         IMSA_HILOGW("not ready to start ime.");
         return;
     }
+    if (memoryState_ == BigMemoryState::BIG_MEMORY_START) {
+        IMSA_HILOGI("big memory start, do not restart.");
+        return;
+    }
     StartImeIfInstalled();
 }