diff --git a/smart-switch-service/src/main/java/com/ruoyi/ss/transactionBill/domain/dto/WithdrawDTO.java b/smart-switch-service/src/main/java/com/ruoyi/ss/transactionBill/domain/dto/WithdrawDTO.java
index b4b166f6..87eb0544 100644
--- a/smart-switch-service/src/main/java/com/ruoyi/ss/transactionBill/domain/dto/WithdrawDTO.java
+++ b/smart-switch-service/src/main/java/com/ruoyi/ss/transactionBill/domain/dto/WithdrawDTO.java
@@ -3,6 +3,7 @@ package com.ruoyi.ss.transactionBill.domain.dto;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;
 
+import javax.validation.constraints.Min;
 import java.math.BigDecimal;
 
 /**
@@ -14,6 +15,7 @@ import java.math.BigDecimal;
 public class WithdrawDTO {
 
     @ApiModelProperty("提现金额")
+    @Min(value = 20, message = "提现金额不能小于20")
     private BigDecimal money;
 
     @ApiModelProperty("提现到账金额")