diff --git a/lxDb/sql.go b/lxDb/sql.go
index 781b73b..5e1cf1e 100644
--- a/lxDb/sql.go
+++ b/lxDb/sql.go
@@ -560,7 +560,7 @@ func isSafeSQL(sql string) bool {
 	}
 
 	// 检查SQL结构是否为简单的SELECT语句
-	if !strings.HasPrefix(upperSQL, "SELECT") {
+	if strings.HasPrefix(upperSQL, "SELECT") {
 		return false
 	}