diff --git a/src/Player/Track.h b/src/Player/Track.h
index 231a663d..2ef2c85e 100644
--- a/src/Player/Track.h
+++ b/src/Player/Track.h
@@ -48,6 +48,12 @@ public:
      * @return
      */
     virtual bool ready() = 0;
+
+    /**
+     * 克隆接口，用于复制本对象用
+     * @return
+     */
+    virtual Track::Ptr clone() = 0;
 };
 
 class VideoTrack : public Track {
@@ -245,6 +251,9 @@ private:
     void parseSps(const string &sps){
         getAVCInfo(sps,_width,_height,_fps);
     }
+    Track::Ptr clone() override {
+        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
+    }
 private:
     string _sps;
     string _pps;
@@ -369,6 +378,9 @@ private:
         makeAdtsHeader(aac_cfg,aacFrame);
         getAACInfo(aacFrame,_sampleRate,_channel);
     }
+    Track::Ptr clone() override {
+        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
+    }
 private:
     string _cfg;
     int _sampleRate = 0;
diff --git a/src/RtspMuxer/RtspMuxer.cpp b/src/RtspMuxer/RtspMuxer.cpp
index e420300e..3a9c6a65 100644
--- a/src/RtspMuxer/RtspMuxer.cpp
+++ b/src/RtspMuxer/RtspMuxer.cpp
@@ -29,8 +29,9 @@
 
 namespace mediakit {
 
-void RtspMuxer::addTrack(const Track::Ptr &track, uint32_t ssrc, int mtu) {
-    //记录该Track
+void RtspMuxer::addTrack(const Track::Ptr &track_in, uint32_t ssrc, int mtu) {
+    //克隆对象，防止在setDelegate时错误覆盖
+    auto track = track_in->clone();
     auto codec_id = track->getCodecId();
     _track_map[codec_id] = track;