diff --git a/library/think/db/Builder.php b/library/think/db/Builder.php
index 852b3a77..efd1c28b 100644
--- a/library/think/db/Builder.php
+++ b/library/think/db/Builder.php
@@ -296,10 +296,13 @@ abstract class Builder
             }
         }
         $bindType = isset($binds[$field]) ? $binds[$field] : PDO::PARAM_STR;
-        if (is_scalar($value) && array_key_exists($field, $binds) && !in_array($exp, ['IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN']) && strpos($exp, 'TIME') === false && strpos($value, ':') !== 0) {
-            $this->query->bind('where_' . $field, $value, $bindType);
-            $value = ':where_' . $field;
+        if (is_scalar($value) && array_key_exists($field, $binds) && !in_array($exp, ['IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN']) && strpos($exp, 'TIME') === false) {
+            if (strpos($value, ':') !== 0 || !$this->query->isBind(substr($value, 1))) {
+                $this->query->bind('where_' . $field, $value, $bindType);
+                $value = ':where_' . $field;
+            }
         }
+
         $whereStr = '';
         if (in_array($exp, ['=', '<>', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE'])) {
             // 比较运算 及 模糊匹配