diff --git a/services/audiomanager/managersource/src/daudio_source_manager.cpp b/services/audiomanager/managersource/src/daudio_source_manager.cpp
index 2a6bfdc32f029d82a869d6f4e1ee79e9301a41bd..91f87529dbf738d6c83178089bdc6bcaf5a03f00 100644
--- a/services/audiomanager/managersource/src/daudio_source_manager.cpp
+++ b/services/audiomanager/managersource/src/daudio_source_manager.cpp
@@ -472,6 +472,9 @@ void DAudioSourceManager::ListenAudioDev()
     auto taskFunc = [this]() {
         std::lock_guard<std::mutex> lock(devMapMtx_);
         for (auto &iter : audioDevMap_) {
+            if (iter.second.dev == nullptr) {
+                continue;
+            }
             if (iter.second.dev->GetThreadStatusFlag()) {
                 iter.second.dev->SetThreadStatusFlag();
             } else {