diff --git a/LFlow.Permission/PermissionMiddleware.cs b/LFlow.Permission/PermissionMiddleware.cs
index bbf4a11..fa21d74 100644
--- a/LFlow.Permission/PermissionMiddleware.cs
+++ b/LFlow.Permission/PermissionMiddleware.cs
@@ -17,7 +17,7 @@ public class PermissionMiddleware : ILFlowMiddleware
     /// <summary>
     /// 优先级
     /// </summary>
-    public int Priority => 2;
+    public int Priority => 1;
 
     /// <summary>
     /// 执行入口
@@ -45,6 +45,11 @@ public class PermissionMiddleware : ILFlowMiddleware
                 await context.Response.WriteAsync(JsonConvert.SerializeObject(ApiResult<object>.FailResult("无权限！", 100501)));
             }
         }
-
+        // 预检请求
+        if (context.Request.Method == "OPTIONS")
+        {
+            await next();
+            // context.Response.StatusCode = StatusCodes.Status200OK;
+        }
     }
 }
\ No newline at end of file