diff --git a/plugins/shortplaymonitor/__init__.py b/plugins/shortplaymonitor/__init__.py
index b9d80b0..3138409 100644
--- a/plugins/shortplaymonitor/__init__.py
+++ b/plugins/shortplaymonitor/__init__.py
@@ -279,7 +279,15 @@ class ShortPlayMonitor(_PluginBase):
                     if not (target_path.parent / "poster.jpg").exists():
                         thumb_path = self.gen_file_thumb(file_path=target_path,
                                                          cover_conf=cover_conf)
-                        SystemUtils.move(thumb_path, target_path.parent / "poster.jpg")
+                        if thumb_path and Path(thumb_path).exists():
+                            SystemUtils.move(thumb_path, target_path.parent / "poster.jpg")
+                        else:
+                            # 检查是否有缩略图
+                            thumb_files = SystemUtils.list_files(directory=target_path.parent,
+                                                                 extensions=[".jpg"])
+                            if thumb_files:
+                                for thumb in thumb_files:
+                                    SystemUtils.move(thumb, target_path.parent / "poster.jpg")
                 else:
                     logger.error(f"文件 {event_path} 硬链接失败，错误码：{retcode}")