diff --git a/src/Validator/SmallThanColumn.php b/src/Validator/SmallThanColumn.php
index 19f8a29..8874bcf 100644
--- a/src/Validator/SmallThanColumn.php
+++ b/src/Validator/SmallThanColumn.php
@@ -26,7 +26,7 @@ protected function validate(Param $param, ServerRequestInterface $request): bool
             throw new Annotation("compare param: {$this->paramName} require in SmallThanColumn rule ,but not define in any controller annotation");
         }
         $compare = $list[$this->paramName]->parsedValue();
-        if($itemData > $compare){
+        if($itemData >= $compare){
             return false;
         }else{
             return true;
diff --git a/tests/ControllerExample/Index.php b/tests/ControllerExample/Index.php
index 25d04ab..adb1e20 100644
--- a/tests/ControllerExample/Index.php
+++ b/tests/ControllerExample/Index.php
@@ -9,6 +9,7 @@
 use EasySwoole\HttpAnnotation\Document\Document;
 use EasySwoole\HttpAnnotation\Enum\HttpMethod;
 use EasySwoole\HttpAnnotation\Enum\ParamFrom;
+use EasySwoole\HttpAnnotation\Validator\BigThanColumn;
 use EasySwoole\HttpAnnotation\Validator\Integer;
 use EasySwoole\HttpAnnotation\Validator\IsUrl;
 use EasySwoole\HttpAnnotation\Validator\MaxLength;
@@ -19,6 +20,7 @@
 use EasySwoole\HttpAnnotation\Validator\OptionalIfParamMiss;
 use EasySwoole\HttpAnnotation\Validator\OptionalIfParamSet;
 use EasySwoole\HttpAnnotation\Validator\Required;
+use EasySwoole\HttpAnnotation\Validator\SmallThanColumn;
 
 class Index extends Base
 {
@@ -169,4 +171,34 @@ function testArray(array $data)
     {
         $this->writeJson(Status::CODE_OK,$data);
     }
+
+    #[Api(
+        apiName: 'compare',
+        requestParam: [
+            new Param(
+                name: "a",
+                validate: [
+                    new Integer(),
+                    new BigThanColumn('b')
+                ]
+            ),
+            new Param(
+                name: "b",
+                validate: [
+                    new Integer()
+                ]
+            ),
+            new Param(
+                name: 'c',
+                validate: [
+                    new Integer(),
+                    new SmallThanColumn('b')
+                ]
+            )
+        ]
+    )]
+    function compare(array $data)
+    {
+        $this->writeJson(Status::CODE_OK,$data);
+    }
 }
\ No newline at end of file