diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java
index d5fd4e86..9ea43928 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java
@@ -225,8 +225,11 @@ final class DownloadUtil implements IDownloadUtil, Runnable {
         mListener.supportBreakpoint(false);
         Log.w(TAG, "该下载链接不支持断点下载");
         handleBreakpoint(conn);
+      } else if (code == HttpURLConnection.HTTP_NOT_FOUND) {
+        Log.w(TAG, "任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，错误码：404");
+        mListener.onCancel();
       } else {
-        failDownload("任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，返回码：" + code);
+        failDownload("任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，错误码：" + code);
       }
     } catch (IOException e) {
       failDownload("下载失败【downloadUrl:"
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
index 309594d7..97b8eb0b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
@@ -216,6 +216,7 @@ final class UploadUtil implements Runnable {
       mHttpConn.disconnect();
     } else {
       Log.w(TAG, "state_code = " + status);
+      mListener.onFail();
     }
 
     writer.flush();