diff --git a/library/think/db/Builder.php b/library/think/db/Builder.php
index 75e89ce7..d951c232 100644
--- a/library/think/db/Builder.php
+++ b/library/think/db/Builder.php
@@ -509,6 +509,11 @@ abstract class Builder
             }
         }
         $bindName = $bindName ?: $key;
+
+        if ($this->query->isBind($bindName)) {
+            $bindName .= '_' . str_replace('.', '_', uniqid('', true));
+        }
+
         $this->query->bind($bindName, $value, $bindType);
         return ':' . $bindName;
     }