diff --git a/api/source/mk_media.cpp b/api/source/mk_media.cpp
index 1c6c9d76..402546fa 100755
--- a/api/source/mk_media.cpp
+++ b/api/source/mk_media.cpp
@@ -20,8 +20,10 @@ class MediaHelper : public MediaSourceEvent , public std::enable_shared_from_thi
 public:
     using Ptr = std::shared_ptr<MediaHelper>;
     template<typename ...ArgsType>
-    MediaHelper(ArgsType &&...args){
-        _channel = std::make_shared<DevChannel>(std::forward<ArgsType>(args)...);
+    MediaHelper(ArgsType &&...args) {
+        _poller = EventPollerPool::Instance().getPoller();
+        // 在poller线程中创建DevChannel(MultiMediaSourceMuxer)对象，确保严格的线程安全限制
+        _poller->sync([&]() { _channel = std::make_shared<DevChannel>(std::forward<ArgsType>(args)...); });
     }
 
     ~MediaHelper() = default;
@@ -102,7 +104,12 @@ protected:
         }
     }
 
+    toolkit::EventPoller::Ptr getOwnerPoller(MediaSource &sender) {
+        return _poller;
+    }
+
 private:
+    EventPoller::Ptr _poller;
     DevChannel::Ptr _channel;
     on_mk_media_close _on_close = nullptr;
     on_mk_media_seek _on_seek = nullptr;
diff --git a/src/Common/Device.cpp b/src/Common/Device.cpp
index f858f12f..2b1edfab 100644
--- a/src/Common/Device.cpp
+++ b/src/Common/Device.cpp
@@ -179,6 +179,27 @@ bool DevChannel::initAudio(const AudioInfo &info) {
     }
 }
 
+bool DevChannel::inputFrame(const Frame::Ptr &frame) {
+    auto cached_frame = Frame::getCacheAbleFrame(frame);
+    weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
+    getOwnerPoller(MediaSource::NullMediaSource())->async([weak_self, cached_frame]() {
+        if (auto strong_self = weak_self.lock()) {
+            strong_self->MultiMediaSourceMuxer::inputFrame(cached_frame);
+        }
+    });
+    return true;
+}
+
+bool DevChannel::addTrack(const Track::Ptr &track) {
+    bool ret;
+    getOwnerPoller(MediaSource::NullMediaSource())->sync([&]() { ret = MultiMediaSourceMuxer::addTrack(track); });
+    return ret;
+}
+
+void DevChannel::addTrackCompleted() {
+    getOwnerPoller(MediaSource::NullMediaSource())->sync([&]() { MultiMediaSourceMuxer::addTrackCompleted(); });
+}
+
 MediaOriginType DevChannel::getOriginType(MediaSource &sender) const {
     return MediaOriginType::device_chn;
 }
diff --git a/src/Common/Device.h b/src/Common/Device.h
index 8c78da46..963fb0dc 100644
--- a/src/Common/Device.h
+++ b/src/Common/Device.h
@@ -118,6 +118,11 @@ public:
      */
     bool inputPCM(char *data, int len, uint64_t cts);
 
+    //// 重载基类方法，确保线程安全 ////
+    bool inputFrame(const Frame::Ptr &frame) override;
+    bool addTrack(const Track::Ptr & track) override;
+    void addTrackCompleted() override;
+
 private:
     MediaOriginType getOriginType(MediaSource &sender) const override;
 
diff --git a/src/Common/MediaSink.cpp b/src/Common/MediaSink.cpp
index e88f56ee..66062b97 100644
--- a/src/Common/MediaSink.cpp
+++ b/src/Common/MediaSink.cpp
@@ -172,7 +172,7 @@ void MediaSink::emitAllTrackReady() {
                 continue;
             }
             pr.second.for_each([&](const Frame::Ptr &frame) {
-                inputFrame(frame);
+                MediaSink::inputFrame(frame);
             });
         }
         _frame_unread.clear();