diff --git a/frameworks/inputmethod_ability/include/i_input_method_core.h b/frameworks/inputmethod_ability/include/i_input_method_core.h
index d3f38fa14ceae2fc2d7a2d841d1f5ff0aceaeebe..22bdda39680377a47242d59f646617c1df3d5219 100644
--- a/frameworks/inputmethod_ability/include/i_input_method_core.h
+++ b/frameworks/inputmethod_ability/include/i_input_method_core.h
@@ -34,6 +34,7 @@ namespace MiscServices {
     public:
         enum {
             INITIALIZE_INPUT = FIRST_CALL_TRANSACTION,
+            SET_CLIENT_STATE,
             START_INPUT,
             STOP_INPUT,
             SHOW_KEYBOARD,
@@ -56,6 +57,7 @@ namespace MiscServices {
         virtual int32_t setKeyboardType(const KeyboardType& type) = 0;
         virtual int32_t getKeyboardWindowHeight(int32_t retHeight) = 0;
         virtual int32_t InitInputControlChannel(sptr<IInputControlChannel> &inputControlChannel) = 0;
+        virtual void SetClientState(bool state) = 0;
     };
 }
 }
diff --git a/frameworks/inputmethod_ability/include/input_method_ability.h b/frameworks/inputmethod_ability/include/input_method_ability.h
index 3c8dfaddc5473d439b289f286e0cdd460116d0e7..88dce9dc6b1db143f9d91b9dc8ad303ecbfc09a6 100644
--- a/frameworks/inputmethod_ability/include/input_method_ability.h
+++ b/frameworks/inputmethod_ability/include/input_method_ability.h
@@ -64,6 +64,7 @@ namespace MiscServices {
         bool stop_;
         int32_t KEYBOARD_HIDE = 1;
         int32_t KEYBOARD_SHOW = 2;
+        bool isBindClient = false;
 
         // communicating with IMSA
         sptr<IInputControlChannel> inputControlChannel;
diff --git a/frameworks/inputmethod_ability/include/input_method_core_proxy.h b/frameworks/inputmethod_ability/include/input_method_core_proxy.h
index 32be7cada3daed0ee35bfdae5d0b1c98f9fa4a7c..91923f1be7f2e57681233c2131e45ddd4b1b68f7 100644
--- a/frameworks/inputmethod_ability/include/input_method_core_proxy.h
+++ b/frameworks/inputmethod_ability/include/input_method_core_proxy.h
@@ -45,7 +45,7 @@ namespace MiscServices {
         virtual int32_t setKeyboardType(const KeyboardType& type) override;
         virtual int32_t getKeyboardWindowHeight(int32_t retHeight) override;
         virtual int32_t InitInputControlChannel(sptr<IInputControlChannel> &inputControlChannel) override;
-
+        virtual void SetClientState(bool state) override;
     private:
         static inline BrokerDelegator<InputMethodCoreProxy> delegator_;
     };
diff --git a/frameworks/inputmethod_ability/include/input_method_core_stub.h b/frameworks/inputmethod_ability/include/input_method_core_stub.h
index 9c22c43dde11c63fe657472e7820af260a70b905..b314264357b0a9b778ea5395fed82feaa322a183 100644
--- a/frameworks/inputmethod_ability/include/input_method_core_stub.h
+++ b/frameworks/inputmethod_ability/include/input_method_core_stub.h
@@ -54,6 +54,7 @@ namespace MiscServices {
         virtual int32_t setKeyboardType(const KeyboardType& type) override;
         virtual int32_t getKeyboardWindowHeight(int32_t retHeight) override;
         virtual int32_t InitInputControlChannel(sptr<IInputControlChannel> &inputControlChannel) override;
+        virtual void SetClientState(bool state) override;
         void SetMessageHandler(MessageHandler *msgHandler);
 
     private:
diff --git a/frameworks/inputmethod_ability/src/input_method_ability.cpp b/frameworks/inputmethod_ability/src/input_method_ability.cpp
index 6fff11462445f4b1da136bd6bd911f32a48b9417..03ead7f7f9a9fac562bb1d217d820b21944969a1 100644
--- a/frameworks/inputmethod_ability/src/input_method_ability.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_ability.cpp
@@ -138,6 +138,11 @@ namespace MiscServices {
                     OnInitInputControlChannel(msg);
                     break;
                 }
+                case MSG_ID_SET_CLIENT_STATE: {
+                    MessageParcel *data = msg->msgContent_;
+                    isBindClient = data->ReadBool();
+                    break;
+                }
                 case MSG_ID_START_INPUT: {
                     OnStartInput(msg);
                     break;
@@ -252,6 +257,10 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::DispatchKeyEvent");
         IMSA_HILOGI("InputMethodAbility::DispatchKeyEvent: key = %{public}d, status = %{public}d", keyCode, keyStatus);
+        if (!isBindClient) {
+            IMSA_HILOGI("InputMethodAbility::DispatchKeyEvent abort. no client");
+            return false;
+        }
         return imeListener_->OnKeyEvent(keyCode, keyStatus);
     }
  
diff --git a/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp b/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
index fde9c990cb86248cfc8690c756f70ec8c26405bf..2155aa3f0fa0ec9e8e683deaec828ffc49fd82b0 100644
--- a/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
@@ -90,6 +90,25 @@ namespace MiscServices {
         return code;
     }
 
+    void InputMethodCoreProxy::SetClientState(bool state)
+    {
+        IMSA_HILOGI("InputMethodCoreProxy::SetClientState");
+        MessageParcel data;
+        if (!(data.WriteInterfaceToken(GetDescriptor())
+            && data.WriteBool(state))) {
+            IMSA_HILOGI("InputMethodCoreProxy::SetClientState write error");
+            return;
+        }
+        MessageParcel reply;
+        MessageOption option {
+            MessageOption::TF_SYNC
+        };
+
+        int32_t status = Remote()->SendRequest(SET_CLIENT_STATE, data, reply, option);
+        if (status != ErrorCode::NO_ERROR) {
+            IMSA_HILOGI("InputMethodCoreProxy::SetClientState status = %{public}d", status);
+        }
+    }
     bool InputMethodCoreProxy::startInput(const sptr<IInputDataChannel> &inputDataChannel,
                                           const InputAttribute& editorAttribute, bool supportPhysicalKbd)
     {
diff --git a/frameworks/inputmethod_ability/src/input_method_core_stub.cpp b/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
index 6ee000231b372deb4a11592612fe4a0dbaa87ffd..f8717704d0bafe2792fa140c7c4bc5ea476f62eb 100644
--- a/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
@@ -94,6 +94,11 @@ namespace MiscServices {
                 reply.WriteNoException();
                 break;
             }
+            case SET_CLIENT_STATE: {
+                bool state = data.ReadBool();
+                SetClientState(state);
+                break;
+            }
             case STOP_INPUT: {
                 stopInput();
                 reply.WriteNoException();
@@ -201,6 +206,18 @@ namespace MiscServices {
         return ErrorCode::NO_ERROR;
     }
 
+    void InputMethodCoreStub::SetClientState(bool state)
+    {
+        IMSA_HILOGI("InputMethodCoreStub::SetClientState");
+        if (msgHandler_ == nullptr) {
+            return;
+        }
+        MessageParcel *data = new MessageParcel();
+
+        Message *msg = new Message(MessageID::MSG_ID_SET_CLIENT_STATE, data);
+        msgHandler_->SendMessage(msg);
+    }
+
     bool InputMethodCoreStub::showKeyboard(const sptr<IInputDataChannel>& inputDataChannel)
     {
         IMSA_HILOGI("InputMethodCoreStub::showKeyboard");
diff --git a/services/include/message_handler.h b/services/include/message_handler.h
index d5a41ce1fd7dbeaa08cb5e58b176252125cc719e..3a12967ceff23666d1db462e1ac89b5b1a925fcc 100644
--- a/services/include/message_handler.h
+++ b/services/include/message_handler.h
@@ -70,6 +70,7 @@ namespace MessageID {
         MSG_ID_MOVE_CURSOR,
 
         // the request from IMSA to IMA
+        MSG_ID_SET_CLIENT_STATE,
         MSG_ID_SHOW_KEYBOARD,
         MSG_ID_INITIALIZE_INPUT,
         MSG_ID_HIDE_KEYBOARD,
diff --git a/services/src/peruser_session.cpp b/services/src/peruser_session.cpp
index dfc9ad69587ad45a4e143eb4c42ddfed5f3f3730..aacb8c8fe9481765bde553f429b6860880153a7d 100644
--- a/services/src/peruser_session.cpp
+++ b/services/src/peruser_session.cpp
@@ -1218,6 +1218,7 @@ namespace MiscServices {
         sptr<InputClientProxy> client = new InputClientProxy(clientObject);
         sptr<IInputClient> interface = client;
         int remainClientNum = 0;
+        imsCore[0]->SetClientState(false);
         HideKeyboard(client);
         int ret = RemoveClient(client, remainClientNum);
         if (ret != ErrorCode::NO_ERROR) {
@@ -1237,6 +1238,7 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         sptr<IRemoteObject> clientObject = data->ReadRemoteObject();
         sptr<InputClientProxy> client = new InputClientProxy(clientObject);
+        imsCore[0]->SetClientState(true);
         ShowKeyboard(client);
     }