diff --git a/library/think/Validate.php b/library/think/Validate.php
index 60ec7d3b..6226892c 100644
--- a/library/think/Validate.php
+++ b/library/think/Validate.php
@@ -1195,7 +1195,7 @@ class Validate
             // 不是正则表达式则两端补上/
             $rule = '/^' . $rule . '$/';
         }
-        return 1 === preg_match($rule, (string) $value);
+        return is_scalar($value) && 1 === preg_match($rule, (string) $value);
     }
 
     /**