diff --git a/frameworks/native/audioadapter/include/pulse_audio_service_adapter_impl.h b/frameworks/native/audioadapter/include/pulse_audio_service_adapter_impl.h
index 3295b601e92899ce6dc7b2b9e22c4559c11fe8c2..a5ca533ce99c2b2f07a6ef814eb16633d9ea3e32 100644
--- a/frameworks/native/audioadapter/include/pulse_audio_service_adapter_impl.h
+++ b/frameworks/native/audioadapter/include/pulse_audio_service_adapter_impl.h
@@ -94,6 +94,7 @@ private:
     static std::unordered_map<uint32_t, uint32_t> sourceIndexSessionIDMap;
     std::mutex mMutex;
     bool isSetDefaultSink_ = false;
+    bool isSetDefaultSource_ = false;
 };
 }  // namespace AudioStandard
 }  // namespace OHOS
diff --git a/frameworks/native/audioadapter/src/pulse_audio_service_adapter_impl.cpp b/frameworks/native/audioadapter/src/pulse_audio_service_adapter_impl.cpp
index 1183b242a05088056144053a249020bdc2fa0d09..41a66f32dfddee0a5f166d92b7338a799291ba68 100644
--- a/frameworks/native/audioadapter/src/pulse_audio_service_adapter_impl.cpp
+++ b/frameworks/native/audioadapter/src/pulse_audio_service_adapter_impl.cpp
@@ -271,6 +271,7 @@ int32_t PulseAudioServiceAdapterImpl::SetDefaultSource(string name)
         pa_threaded_mainloop_unlock(mMainLoop);
         return ERR_OPERATION_FAILED;
     }
+    isSetDefaultSource_ = true;
     pa_operation_unref(operation);
     pa_threaded_mainloop_unlock(mMainLoop);
 
@@ -672,6 +673,11 @@ vector<SourceOutput> PulseAudioServiceAdapterImpl::GetAllSourceOutputs()
         return userData->sourceOutputList;
     }
 
+    if (!isSetDefaultSource_) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] default source has not been set.");
+        return userData->sourceOutputList;
+    }
+
     pa_threaded_mainloop_lock(mMainLoop);
 
     pa_operation *operation = pa_context_get_source_output_info_list(mContext,