diff --git a/frameworks/native/capi/screencapture/native_avscreen_capture.cpp b/frameworks/native/capi/screencapture/native_avscreen_capture.cpp
index 666ae2bac8b0fc961150246b39f70a5b7f5524dd..53c590fd617e550f639c1733af12ddf215e8d334 100644
--- a/frameworks/native/capi/screencapture/native_avscreen_capture.cpp
+++ b/frameworks/native/capi/screencapture/native_avscreen_capture.cpp
@@ -573,6 +573,8 @@ OH_AVSCREEN_CAPTURE_ErrCode OH_AVScreenCapture_AcquireAudioBuffer(struct OH_AVSc
     OH_AudioBuffer **audiobuffer, OH_AudioCaptureSourceType type)
 {
     CHECK_AND_RETURN_RET_LOG(capture != nullptr, AV_SCREEN_CAPTURE_ERR_INVALID_VAL, "input capture is nullptr!");
+    CHECK_AND_RETURN_RET_LOG(audiobuffer != nullptr && (*audiobuffer != nullptr), AV_SCREEN_CAPTURE_ERR_INVALID_VAL,
+        "input OH_AudioBuffer **audiobuffer is nullptr!");
 
     struct ScreenCaptureObject *screenCaptureObj = reinterpret_cast<ScreenCaptureObject *>(capture);
     CHECK_AND_RETURN_RET_LOG(screenCaptureObj->screenCapture_ != nullptr,
diff --git a/services/services/screen_capture/server/screen_capture_server.cpp b/services/services/screen_capture/server/screen_capture_server.cpp
index d6661275a0e7af9a28a8e44195003045f89e71ec..80e8554481ada65a39874ce9c2e9252b1743c50a 100644
--- a/services/services/screen_capture/server/screen_capture_server.cpp
+++ b/services/services/screen_capture/server/screen_capture_server.cpp
@@ -556,7 +556,7 @@ int32_t ScreenCaptureServer::RequestUserPrivacyAuthority()
         return MSERR_OK;
     }
 
-#ifdef SUPPORT_SCREEN_CAPTURE_WINDOW_NOTIFICATION_NOTIFICATION
+#ifdef SUPPORT_SCREEN_CAPTURE_WINDOW_NOTIFICATION
     if (isPrivacyAuthorityEnabled_) {
         return StartPrivacyWindow();
     }
diff --git a/test/unittest/screen_capture_test/capi/src/screen_capture_capi_mock.cpp b/test/unittest/screen_capture_test/capi/src/screen_capture_capi_mock.cpp
index 0f61445799d5fdf3f18e8469568c648a3b62eef6..3ef9005319e45188d61551cdf13ee112712f4162 100644
--- a/test/unittest/screen_capture_test/capi/src/screen_capture_capi_mock.cpp
+++ b/test/unittest/screen_capture_test/capi/src/screen_capture_capi_mock.cpp
@@ -218,9 +218,12 @@ int32_t ScreenCaptureCapiMock::AcquireAudioBuffer(std::shared_ptr<AudioBuffer> &
     }
     auto t_type = static_cast<OH_AudioCaptureSourceType>(type);
     int32_t ret = OH_AVScreenCapture_AcquireAudioBuffer(screenCapture_, &buffer, t_type);
-    audioBuffer =
-        std::make_shared<AudioBuffer>(buffer->buf, buffer->size, buffer->timestamp,
-            static_cast<AudioCaptureSourceType>(buffer->type));
+    if (ret == AV_SCREEN_CAPTURE_ERR_OK) {
+        // If ret is not AV_SCREEN_CAPTURE_ERR_OK, the object referenced by buffer is not initialized and can't be used.
+        audioBuffer =
+            std::make_shared<AudioBuffer>(buffer->buf, buffer->size, buffer->timestamp,
+                static_cast<AudioCaptureSourceType>(buffer->type));
+    }
     free(buffer);
     buffer = nullptr;
     return ret;
diff --git a/test/unittest/screen_capture_test/screen_capture_unittest/src/screen_capture_unit_test.cpp b/test/unittest/screen_capture_test/screen_capture_unittest/src/screen_capture_unit_test.cpp
index 3af28598ead7ef008b0b224740a56ef9786b43ca..d3765fcff94654f05e7d9cf6e2f2f0b5afa80411 100644
--- a/test/unittest/screen_capture_test/screen_capture_unittest/src/screen_capture_unit_test.cpp
+++ b/test/unittest/screen_capture_test/screen_capture_unittest/src/screen_capture_unit_test.cpp
@@ -42,11 +42,12 @@ void ScreenCaptureUnitTestCallback::OnAudioBufferAvailable(bool isReady, AudioCa
         std::shared_ptr<AudioBuffer> audioBuffer = nullptr;
         if (screenCapture_->AcquireAudioBuffer(audioBuffer, type) == MSERR_OK) {
             if (audioBuffer == nullptr) {
-                cout << "AcquireAudioBuffer failed, audio buffer empty" << endl;
+                cout << "AcquireAudioBuffer failed, audio buffer empty, PLEASE CHECK IF IT IS OK!!!" << endl;
+            } else {
+                cout << "AcquireAudioBuffer, audioBufferLen:" << audioBuffer->length << ", timestampe:"
+                    << audioBuffer->timestamp << ", audioSourceType:" << audioBuffer->sourcetype << endl;
+                DumpAudioBuffer(audioBuffer);
             }
-            cout << "AcquireAudioBuffer, audioBufferLen:" << audioBuffer->length << ", timestampe:"
-                << audioBuffer->timestamp << ", audioSourceType:" << audioBuffer->sourcetype << endl;
-            DumpAudioBuffer(audioBuffer);
         }
         if (aFlag_ == 1) {
             screenCapture_->ReleaseAudioBuffer(type);