diff --git a/src/backend/dbus-interface/kylinagentinterface.c b/src/backend/dbus-interface/kylinagentinterface.c
index ad6361a7..35a7d41a 100644
--- a/src/backend/dbus-interface/kylinagentinterface.c
+++ b/src/backend/dbus-interface/kylinagentinterface.c
@@ -403,6 +403,9 @@ applet_agent_cancel_secrets_cb (AppletAgent *agent,
 
 void agent_init()
 {
+    if (NULL != kylinAgent) {
+        return;
+    }
     GError *error = NULL;
     kylinAgent = applet_agent_new (&error);
 
@@ -414,3 +417,12 @@ void agent_init()
 
     return;
 }
+
+void agent_clear()
+{
+    if (NULL == kylinAgent) {
+        return;
+    }
+    g_clear_object (&kylinAgent);
+    kylinAgent = NULL;
+}
diff --git a/src/backend/dbus-interface/kylinagentinterface.h b/src/backend/dbus-interface/kylinagentinterface.h
index 0df883e0..2a097923 100644
--- a/src/backend/dbus-interface/kylinagentinterface.h
+++ b/src/backend/dbus-interface/kylinagentinterface.h
@@ -3,6 +3,7 @@
 #ifdef __cplusplus
 extern "C"{
 void agent_init();
+void agent_clear();
 }
 #endif
 
diff --git a/src/backend/dbusadaptor.cpp b/src/backend/dbusadaptor.cpp
index 56802498..29d5b7e8 100644
--- a/src/backend/dbusadaptor.cpp
+++ b/src/backend/dbusadaptor.cpp
@@ -234,3 +234,13 @@ void DbusAdaptor::reScan()
 {
     parent()->rescan();
 }
+
+void DbusAdaptor::keyRingInit()
+{
+    parent()->keyRingInit();
+}
+
+void DbusAdaptor::keyRingClear()
+{
+    parent()->keyRingClear();
+}
diff --git a/src/backend/dbusadaptor.h b/src/backend/dbusadaptor.h
index 613aecfa..18a28385 100644
--- a/src/backend/dbusadaptor.h
+++ b/src/backend/dbusadaptor.h
@@ -83,6 +83,9 @@ public Q_SLOTS: // METHODS
     QStringList getApInfoBySsid(QString devName, QString ssid);
     //wifi扫描
     void reScan();
+    //keyring
+    void keyRingInit();
+    void keyRingClear();
 Q_SIGNALS: // SIGNALS
 //    void wirelessActivating(QString devName, QString ssid);
 //    void wiredActivating(QString devName, QString ssid);
diff --git a/src/frontend/mainwindow.cpp b/src/frontend/mainwindow.cpp
index 793fe87f..4ce56ded 100644
--- a/src/frontend/mainwindow.cpp
+++ b/src/frontend/mainwindow.cpp
@@ -711,3 +711,13 @@ void MainWindow::rescan()
 {
     m_wlanWidget->requestScan();
 }
+
+void MainWindow::keyRingInit()
+{
+    agent_init();
+}
+
+void MainWindow::keyRingClear()
+{
+    agent_clear();
+}
diff --git a/src/frontend/mainwindow.h b/src/frontend/mainwindow.h
index 5e27f7f9..d0bf9430 100644
--- a/src/frontend/mainwindow.h
+++ b/src/frontend/mainwindow.h
@@ -68,6 +68,9 @@ public:
 
     void rescan();
 
+    void keyRingInit();
+    void keyRingClear();
+
 signals:
     //设备插拔
     void deviceStatusChanged();