diff --git a/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImeMgr.java b/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImeMgr.java
index 23ea88c73aa91f1505611e5cace9ec5473688f8b..deb2078e8dfa115eda71bc86c0e2abfe1a8c6ed1 100644
--- a/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImeMgr.java
+++ b/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImeMgr.java
@@ -10,6 +10,7 @@ import android.text.InputFilter;
 import android.text.TextWatcher;
 import android.util.TypedValue;
 import android.view.Gravity;
+import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
@@ -39,7 +40,7 @@ public class CloudPhoneImeMgr {
     private static final int IME_PASTE_FROM_CLOUD = 6;
     private static final int IME_PASTE_TO_CLOUD = 7;
     private static final int IME_MSG_HEADER_LEN = 3;
-    private static final String IME_CURSOR_SEPARATOR = "=";
+    private static final int IME_KEY_EVENT_LEN = 2;
 
     private ViewGroup mRootViewGroup;
     private ViewGroup mImeViewGroup;
@@ -48,8 +49,6 @@ public class CloudPhoneImeMgr {
     private PopupWindow mPopWindow;
     private CloudPhoneTextWatchListener mTextWatchListener;
     private CloudPhoneClipboardListener mClipboardListener;
-    private int mCurrentCursor;
-    private boolean mCursorInEnd;
 
     @SuppressLint("Range")
     public CloudPhoneImeMgr(Context context, ViewGroup viewGroup) {
@@ -80,13 +79,9 @@ public class CloudPhoneImeMgr {
 
             @Override
             public void onTextChanged(CharSequence charSequence, int start, int before, int count) {
-                String text = "";
-                int cursorPosition = mImeEditText.getSelectionStart();
-                if (!mCursorInEnd|| (mCurrentCursor == before && mCurrentCursor == count)) {
-                    text = charSequence.toString() + IME_CURSOR_SEPARATOR + mCurrentCursor;
-                    mCursorInEnd = true;
-                } else {
-                    text = charSequence.toString() + IME_CURSOR_SEPARATOR + cursorPosition;
+                String text = charSequence.toString();
+                if (text.isEmpty()) {
+                    return;
                 }
                 byte[] data = text.getBytes();
                 byte[] msg = new byte[IME_MSG_HEADER_LEN + data.length];
@@ -98,6 +93,7 @@ public class CloudPhoneImeMgr {
                 if (mTextWatchListener != null) {
                     mTextWatchListener.onTextChange(msg);
                 }
+                mImeEditText.getText().clear();
             }
 
             @Override
@@ -106,6 +102,26 @@ public class CloudPhoneImeMgr {
             }
         });
 
+        mImeEditText.setOnKeyListener(new View.OnKeyListener() {
+            @Override
+            public boolean onKey(View view, int keyCode, KeyEvent keyEvent) {
+                if (keyCode == KeyEvent.KEYCODE_DEL && keyEvent.getAction() == KeyEvent.ACTION_DOWN) {
+                    byte[] msg = new byte[IME_MSG_HEADER_LEN + IME_KEY_EVENT_LEN];
+                    msg[0] = IME_KEY_EVENT;
+                    msg[1] = (byte) ((IME_KEY_EVENT_LEN >> 8) & 0xFF);
+                    msg[2] = (byte) (IME_KEY_EVENT_LEN & 0XFF);
+                    msg[3] = (byte) ((KeyEvent.KEYCODE_DEL >> 8) & 0xFF);
+                    msg[4] = (byte) (KeyEvent.KEYCODE_DEL & 0XFF);
+
+                    if (mTextWatchListener != null) {
+                        mTextWatchListener.onTextChange(msg);
+                    }
+                    return true;
+                }
+                return false;
+            }
+        });
+
         mPopWindow = new PopupWindow(mImeViewGroup, WindowManager.LayoutParams.MATCH_PARENT, dip2px(BOX_INPUT_HEIGHT), true);
         mPopWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
         mPopWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
@@ -117,17 +133,7 @@ public class CloudPhoneImeMgr {
         if (mPopWindow.isShowing()) {
             return 0;
         }
-        if (text != null && text.length() > 0) {
-            int lastIndex = text.lastIndexOf(IME_CURSOR_SEPARATOR);
-            String content = text.substring(0 ,lastIndex);
-            int cursor = Integer.parseInt(text.substring(lastIndex + 1));
-            mCurrentCursor = cursor;
-            mCursorInEnd = cursor == content.length() ? true : false;
-            mImeEditText.getText().replace(0, mImeEditText.length(), content);
-            mImeEditText.setSelection(cursor);
-        } else {
-            mImeEditText.getText().clear();
-        }
+        mImeEditText.getText().clear();
         mPopWindow.setFocusable(true);
         mImeEditText.requestFocus();
         mPopWindow.showAtLocation(mRootViewGroup, Gravity.BOTTOM, 0, 0);