diff --git a/interfaces/inner_api/file_access/include/file_access_extension_info.h b/interfaces/inner_api/file_access/include/file_access_extension_info.h
index 2be9daa5a0ec7da9862291b3f6edcee8c2b4be63..bfc65ba79d182a1c0de735847bf643840848c243 100644
--- a/interfaces/inner_api/file_access/include/file_access_extension_info.h
+++ b/interfaces/inner_api/file_access/include/file_access_extension_info.h
@@ -304,11 +304,14 @@ struct ConnectExtensionInfo : public MessageParcelable {
 public:
     AAFwk::Want want = {};
     sptr<IRemoteObject> token = nullptr;
+    uintptr_t extConnection_ = 0;
 
     ConnectExtensionInfo() = default;
     ConnectExtensionInfo(AAFwk::Want want, sptr<IRemoteObject> token) : want(want), token(token) {}
+    ConnectExtensionInfo(AAFwk::Want want, sptr<IRemoteObject> token, uintptr_t connect) : want(want),
+        token(token), extConnection_(connect){}
 
-    bool WriteToParcel(MessageParcel &parcel) const override
+    bool WriteToParcel(MessageParcel &parcel, bool ifWriteConnect = false) const override
     {
         if (!parcel.WriteParcelable(&want)) {
             return false;
@@ -316,10 +319,13 @@ public:
         if (!parcel.WriteRemoteObject(token)) {
             return false;
         }
+        if (ifWriteConnect && !parcel.WritePointer(extConnection_)) {
+            return false;
+        }
         return true;
     }
 
-    bool ReadFromParcel(MessageParcel &parcel) override
+    bool ReadFromParcel(MessageParcel &parcel, bool ifReadConnect = false) override
     {
         std::shared_ptr<AAFwk::Want> wantPtr(parcel.ReadParcelable<AAFwk::Want>());
         token = parcel.ReadRemoteObject();
@@ -327,6 +333,12 @@ public:
             return false;
         }
         want = AAFwk::Want(*wantPtr);
+        if (ifReadConnect) {
+            extConnection_ = parcel.ReadPointer();
+            if (extConnection_ == 0) {
+                return false;
+            }
+        }
         return true;
     }
 };
diff --git a/interfaces/inner_api/file_access/src/file_access_ext_connection.cpp b/interfaces/inner_api/file_access/src/file_access_ext_connection.cpp
index be93711e10b38fbc74edd95fe3ff49b1d8f7ed4a..99441ccaee84ce4f26cfd995790ff93db1ba0c73 100644
--- a/interfaces/inner_api/file_access/src/file_access_ext_connection.cpp
+++ b/interfaces/inner_api/file_access/src/file_access_ext_connection.cpp
@@ -65,7 +65,14 @@ void FileAccessExtConnection::ConnectFileExtAbility(const AAFwk::Want &want, con
         fileExtProxy_ = nullptr;
     }
     isConnected_.store(false);
-    ErrCode ret = AAFwk::AbilityManagerClient::GetInstance()->ConnectAbility(want, this, token);
+    auto proxy = FileAccessServiceProxy::GetInstance();
+    if (proxy == nullptr) {
+        HILOG_ERROR("ConnectFileExtAbility get SA failed");
+        return E_LOAD_SA;
+    }
+    std::shared_ptr<ConnectExtensionInfo> connectExtensionInfo =
+        std::make_shared<ConnectExtensionInfo>(connectInfo->want, token, reinterpret_cast<uintptr_t>(this));
+    int32_t ret = proxy->ConnectExtService(connectExtensionInfo);
     if (ret != ERR_OK) {
         HILOG_ERROR("ConnectAbility failed, ret=%{public}d", ret);
         return;
diff --git a/services/native/file_access_service/include/file_access_service.h b/services/native/file_access_service/include/file_access_service.h
index 4f92ab43943ce2299c682908e5f8b27ae905c031..00f7c7f5ec9ac92a242e81d1194406a88805a7be 100644
--- a/services/native/file_access_service/include/file_access_service.h
+++ b/services/native/file_access_service/include/file_access_service.h
@@ -235,6 +235,7 @@ protected:
     int32_t OnChange(Uri uri, NotifyType notifyType) override;
     int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
                              sptr<IFileAccessExtBase> &extensionProxy) override;
+    int32_t ConnectExtService(const std::shared_ptr<ConnectExtensionInfo> &info) override;
 
 private:
     class ExtensionDeathRecipient : public IRemoteObject::DeathRecipient {
diff --git a/services/native/file_access_service/include/file_access_service_ipc_interface_code.h b/services/native/file_access_service/include/file_access_service_ipc_interface_code.h
index 6e16398da7408c730591552c3315838c00223642..5c36dfcab9ea3d34e0e1613c2c9dfc9ae90a92ef 100644
--- a/services/native/file_access_service/include/file_access_service_ipc_interface_code.h
+++ b/services/native/file_access_service/include/file_access_service_ipc_interface_code.h
@@ -22,7 +22,8 @@ namespace FileAccessFwk {
         CMD_REGISTER_NOTIFY = 0,
         CMD_UNREGISTER_NOTIFY,
         CMD_ONCHANGE,
-        CMD_GET_EXTENSION_PROXY
+        CMD_GET_EXTENSION_PROXY,
+        CMD_CONNECT_EXT_SERVICE
     };
 } // namespace FileAccessFwk
 } // namespace OHOS
diff --git a/services/native/file_access_service/include/file_access_service_proxy.h b/services/native/file_access_service/include/file_access_service_proxy.h
index c938a9bc7f6d88eb3028fa9ff353b9d564bad0f5..66e28aa2dc611bda61d4442ff9ab57dc3ededb95 100644
--- a/services/native/file_access_service/include/file_access_service_proxy.h
+++ b/services/native/file_access_service/include/file_access_service_proxy.h
@@ -35,6 +35,7 @@ public:
         const std::shared_ptr<ConnectExtensionInfo> &info) override;
     int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
                              sptr<IFileAccessExtBase> &extensionProxy) override;
+    int32_t ConnectExtService(const std::shared_ptr<ConnectExtensionInfo> &info);
 
     class ServiceProxyLoadCallback : public SystemAbilityLoadCallbackStub {
     public:
diff --git a/services/native/file_access_service/include/file_access_service_stub.h b/services/native/file_access_service/include/file_access_service_stub.h
index cc01c4e4a61276b4911a2957fadac016d09ec619..4f5d9a1adc19688cb6c1794b4f59c32a130387d1 100644
--- a/services/native/file_access_service/include/file_access_service_stub.h
+++ b/services/native/file_access_service/include/file_access_service_stub.h
@@ -38,6 +38,7 @@ private:
     ErrCode CmdRegisterNotify(MessageParcel &data, MessageParcel &reply);
     ErrCode CmdUnregisterNotify(MessageParcel &data, MessageParcel &reply);
     ErrCode CmdGetExensionProxy(MessageParcel &data, MessageParcel &reply);
+    ErrCode CmdConnectExtService(MessageParcel &data, MessageParcel &reply);
     bool CheckCallingPermission(const std::string &permission);
     using RequestFuncType = int (FileAccessServiceStub::*)(MessageParcel &data, MessageParcel &reply);
     std::map<uint32_t, RequestFuncType> stubFuncMap_;
diff --git a/services/native/file_access_service/include/ifile_access_service_base.h b/services/native/file_access_service/include/ifile_access_service_base.h
index fc0c44d262b61c444bfcc563881e521ddee114c7..5c8797f49e10f81a06f2adf34cb5d2e3ca364439 100644
--- a/services/native/file_access_service/include/ifile_access_service_base.h
+++ b/services/native/file_access_service/include/ifile_access_service_base.h
@@ -38,6 +38,7 @@ protected:
     //Get exension proxy by SA
     virtual int32_t GetExensionProxy(const std::shared_ptr<ConnectExtensionInfo> &info,
         sptr<IFileAccessExtBase> &extensionProxy) = 0;
+    virtual int32_t ConnectExtension(const std::shared_ptr<ConnectExtensionInfo> &info) = 0;
 };
 } // namespace FileAccessFwk
 } // namespace OHOS
diff --git a/services/native/file_access_service/src/file_access_service.cpp b/services/native/file_access_service/src/file_access_service.cpp
index 46d204ac7f833644cc8afbb6152777e24e7e57d8..32fff292a057d88e7b0dea2bf5ef50a707b21750 100644
--- a/services/native/file_access_service/src/file_access_service.cpp
+++ b/services/native/file_access_service/src/file_access_service.cpp
@@ -703,5 +703,17 @@ void FileAccessService::AddExtProxyInfo(std::string bundleName, sptr<IFileAccess
     lock_guard<mutex> lock(mapMutex_);
     cMap_.emplace(bundleName, extProxy);
 }
+
+int32_t FileAccessService::ConnectExtService(const std::shared_ptr<ConnectExtensionInfo> &info)
+{
+    if (info == nullptr || info->token == nullptr || info->connect_ == 0) {
+        HILOG_ERROR("ConnectExtensionInfo is invalid");
+        return E_CONNECT;
+    }
+    FileAccessExtConnection *connect = reinterpret_cast<FileAccessExtConnection *>(info->extConnection_);
+    int ret = AAFWK::AbilityManagerClient::GetInstance()->ConnectAbility(info->want,
+        connect, info->token);
+    return ret;
+}
 } // namespace FileAccessFwk
 } // namespace OHOS
diff --git a/services/native/file_access_service/src/file_access_service_proxy.cpp b/services/native/file_access_service/src/file_access_service_proxy.cpp
index 2397bdb54d8b3c3c5be5392460b702c9ac46dafd..b65fc21ce0fb65a5963dc4cebf04b40611644a53 100644
--- a/services/native/file_access_service/src/file_access_service_proxy.cpp
+++ b/services/native/file_access_service/src/file_access_service_proxy.cpp
@@ -351,5 +351,34 @@ int32_t FileAccessServiceProxy::GetExensionProxy(const std::shared_ptr<ConnectEx
 
     return ERR_OK;
 }
+
+int32_t FileAccessServiceProxy::ConnectExtService(const std::shared_ptr<ConnectExtensionInfo> &info) {
+    UserAccessTracer trace;
+    trace.Start("ConnectExtension");
+    MessageParcel data;
+    if (!data.WriteInterfaceToken(FileAccessServiceProxy::GetDescriptor())) {
+        HILOG_ERROR("WriteInterfaceToken failed");
+        return E_IPCS;
+    }
+
+    if (info == nullptr) {
+        HILOG_ERROR("ExtensionInfo is nullptr");
+        return E_GETINFO;
+    }
+
+    if (!info->WriteToParcel(data, true)) {
+        HILOG_ERROR("fail to WriteParcelable Info");
+        return E_IPCS;
+    }
+
+    MessageParcel reply;
+    MessageOption option;
+    int err = Remote()->SendRequest(static_cast<uint32_t>(FileAccessServiceInterfaceCode::CMD_CONNECT_EXT_SERVICE),
+        data, reply, option);
+    if (err != ERR_OK) {
+        HILOG_ERROR("fail to SendRequest. err: %{public}d", err);
+    }
+    return err;
+}
 } // namespace FileAccessFwk
 } // namespace OHOS
diff --git a/services/native/file_access_service/src/file_access_service_stub.cpp b/services/native/file_access_service/src/file_access_service_stub.cpp
index 1ffe1759b2ba9eae29e18defa3d15573f6ab9e4a..24ed8460bbd7cbdcfc4ef14e483163f76c1d0f26 100644
--- a/services/native/file_access_service/src/file_access_service_stub.cpp
+++ b/services/native/file_access_service/src/file_access_service_stub.cpp
@@ -43,6 +43,8 @@ FileAccessServiceStub::FileAccessServiceStub()
         &FileAccessServiceStub::CmdUnregisterNotify;
     stubFuncMap_[static_cast<uint32_t>(FileAccessServiceInterfaceCode::CMD_ONCHANGE)] =
         &FileAccessServiceStub::CmdOnChange;
+    stubFuncMap_[static_cast<uint32_t>(FileAccessServiceInterfaceCode::CMD_CONNECT_EXT_SERVICE)] =
+        &FileAccessServiceStub::CmdConnectExtService;
 }
 
 FileAccessServiceStub::~FileAccessServiceStub()
@@ -212,5 +214,22 @@ ErrCode FileAccessServiceStub::CmdGetExensionProxy(MessageParcel &data, MessageP
     }
     return ERR_OK;
 }
+
+ErrCode FileAccessServiceStub::CmdConnectExtService(MessageParcel &data, MessageParcel &reply)
+{
+    UserAccessTracer trace;
+    trace.Start("CmdConnectExtService");
+    std::shared_ptr<ConnectExtensionInfo> connectExtensionInfo = std::make_shared<ConnectExtensionInfo>();
+    if (!connectExtensionInfo->ReadFromParcel(data, true)) {
+        HILOG_ERROR("fail to read info");
+        return E_IPCS;
+    }
+    int32_t ret = ConnectExtService(connectExtensionInfo);
+    if (!reply.WriteInt32(ret)) {
+        HILOG_ERROR("fail to Write connect result");
+        return E_IPCS;
+    }
+    return ERR_OK;
+}
 } // namespace FileAccessFwk
 } // namespace OHOS
\ No newline at end of file