diff --git a/src/app.controller.ts b/src/app.controller.ts
index 43f1a25..0a61da9 100644
--- a/src/app.controller.ts
+++ b/src/app.controller.ts
@@ -180,6 +180,7 @@ export class QueryVisitorDto extends CommonPageArgs {
 export class QueryVisitorByNumberDto {
   @ApiPropertyOptional({ description: "身份证号", required: true })
   @IsString()
+  @IsNotEmpty()
   identity_card_no: string
 }