diff --git a/README.md b/README.md
index cc2e2a9..16cb84d 100644
--- a/README.md
+++ b/README.md
@@ -148,6 +148,11 @@ Both notification and indication use the following method to set notfication or
               
             }
 
+            @Override
+            public void onNotifySuccess(BleDevice device) {
+
+            }
+
             @Override
             public void onFail(int failCode, String info, BleDevice device) {
              
diff --git a/README_CN.md b/README_CN.md
index d4c1020..2d4aaba 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -140,6 +140,11 @@ notify和indicate都使用以下方法
             @Override
             public void onCharacteristicChanged(byte[] data, BleDevice device) {
               
+            }
+            
+            @Override
+            public void onNotifySuccess(BleDevice device) {
+
             }
 
             @Override
diff --git a/easyble/src/main/java/com/ficat/easyble/gatt/BleGattImpl.java b/easyble/src/main/java/com/ficat/easyble/gatt/BleGattImpl.java
index e378c9a..e87b5b7 100644
--- a/easyble/src/main/java/com/ficat/easyble/gatt/BleGattImpl.java
+++ b/easyble/src/main/java/com/ficat/easyble/gatt/BleGattImpl.java
@@ -227,6 +227,30 @@ public void run() {
             });
         }
 
+        @Override
+        public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
+            super.onDescriptorWrite(gatt, descriptor, status);
+            if (status == BluetoothGatt.GATT_SUCCESS) {
+                String address = gatt.getDevice().getAddress();
+                String serviceUuid = descriptor.getCharacteristic().getService().getUuid().toString();
+                String characteristicUuid = descriptor.getCharacteristic().getUuid().toString();
+                UuidIdentify identify = getUuidIdentifyFromMap(mNotifyCallbackMap, address, serviceUuid, characteristicUuid);
+                if (identify == null) {
+                    return;
+                }
+                final BleNotifyCallback callback = mNotifyCallbackMap.get(identify);
+                final BleDevice device = getBleDeviceFromMap(address, mConnectCallbackMap);
+                mHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        if (callback != null) {
+                            callback.onNotifySuccess(device);
+                        }
+                    }
+                });
+            }
+        }
+
         @Override
         public void onReadRemoteRssi(BluetoothGatt gatt, final int rssi, int status) {
             super.onReadRemoteRssi(gatt, rssi, status);
diff --git a/easyble/src/main/java/com/ficat/easyble/gatt/callback/BleNotifyCallback.java b/easyble/src/main/java/com/ficat/easyble/gatt/callback/BleNotifyCallback.java
index 3e8d1bd..e85ae9f 100644
--- a/easyble/src/main/java/com/ficat/easyble/gatt/callback/BleNotifyCallback.java
+++ b/easyble/src/main/java/com/ficat/easyble/gatt/callback/BleNotifyCallback.java
@@ -5,4 +5,6 @@
 
 public interface BleNotifyCallback extends BleCallback {
     void onCharacteristicChanged(byte[] data, BleDevice device);
+
+    void onNotifySuccess(BleDevice device);
 }
diff --git a/sample/src/main/java/com/ficat/sample/MainActivity.java b/sample/src/main/java/com/ficat/sample/MainActivity.java
index c924181..84df43f 100644
--- a/sample/src/main/java/com/ficat/sample/MainActivity.java
+++ b/sample/src/main/java/com/ficat/sample/MainActivity.java
@@ -191,7 +191,7 @@ public void onLeScan(BleDevice device, int rssi, byte[] scanRecord) {
             @Override
             public void onStart(boolean startScanSuccess, String info) {
                 Log.e(TAG, "start scan = " + startScanSuccess + "   info: " + info);
-                if (startScanSuccess){
+                if (startScanSuccess) {
                     deviceList.clear();
                     adapter.notifyDataSetChanged();
                 }
@@ -279,13 +279,18 @@ private void testNotify() {
         BleDevice device = manager.getConnectedDevices().get(0);
         //randomly finding a characteristic supporting notification to test
         Map<String, String> notificationInfo = getSpecificServiceInfo(device, CHARACTERISTIC_NOTIFICATION);
-        for (Map.Entry<String, String> e : notificationInfo.entrySet()) {
+        for (final Map.Entry<String, String> e : notificationInfo.entrySet()) {
             manager.notify(device, e.getKey(), e.getValue(), new BleNotifyCallback() {
                 @Override
                 public void onCharacteristicChanged(byte[] data, BleDevice device) {
                     Toast.makeText(MainActivity.this, "receive notification data" + new String(data), Toast.LENGTH_SHORT).show();
                 }
 
+                @Override
+                public void onNotifySuccess(BleDevice device) {
+                    Log.e(TAG, "notify succcess: " + e.getValue());
+                }
+
                 @Override
                 public void onFail(int failCode, String info, BleDevice device) {
                     Toast.makeText(MainActivity.this, "set notify fail: " + info, Toast.LENGTH_SHORT).show();