diff --git a/plugins/dde-dock/sound/soundcontroller.cpp b/plugins/dde-dock/sound/soundcontroller.cpp
index 472174627..17fa2bc2e 100644
--- a/plugins/dde-dock/sound/soundcontroller.cpp
+++ b/plugins/dde-dock/sound/soundcontroller.cpp
@@ -74,7 +74,6 @@ void SoundController::SetMute(bool in0)
 void SoundController::onDefaultSinkChanged(const QDBusObjectPath &path)
 {
     // 防止手动切换设备，与后端交互时，获取到多个信号，设备切换多次，造成混乱
-    QThread::msleep(200);
 
     if (m_defaultSinkInter)
         m_defaultSinkInter->deleteLater();