diff --git a/LFLiveKit/capture/LFVideoCapture.m b/LFLiveKit/capture/LFVideoCapture.m
index c14bdf0d..7e42a3f5 100755
--- a/LFLiveKit/capture/LFVideoCapture.m
+++ b/LFLiveKit/capture/LFVideoCapture.m
@@ -110,6 +110,7 @@ - (UIView *)preView {
 }
 
 - (void)setCaptureDevicePosition:(AVCaptureDevicePosition)captureDevicePosition {
+    if(captureDevicePosition == self.videoCamera.cameraPosition) return;
     [self.videoCamera rotateCamera];
     self.videoCamera.frameRate = (int32_t)_configuration.videoFrameRate;
     [self reloadMirror];