diff --git a/jsowell-admin/src/main/java/com/jsowell/web/controller/pile/OrderPileOccupyController.java b/jsowell-admin/src/main/java/com/jsowell/web/controller/pile/OrderPileOccupyController.java
index dd3893bce..8ef81f6a4 100644
--- a/jsowell-admin/src/main/java/com/jsowell/web/controller/pile/OrderPileOccupyController.java
+++ b/jsowell-admin/src/main/java/com/jsowell/web/controller/pile/OrderPileOccupyController.java
@@ -3,13 +3,13 @@ package com.jsowell.web.controller.pile;
 import java.util.List;
 import javax.servlet.http.HttpServletResponse;
 
+import com.jsowell.pile.dto.MakeOrderFreeDTO;
 import com.jsowell.pile.service.OrderPileOccupyService;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -86,6 +86,18 @@ public class OrderPileOccupyController extends BaseController {
         return toAjax(orderPileOccupyService.updateByPrimaryKey(orderPileOccupy));
     }
 
+    /**
+     * 使某笔订单免费/修改订单金额
+     * http://localhost:8080/pile/occupy/updateOrderAmount
+     * @param dto
+     * @return
+     */
+    @PreAuthorize("@ss.hasPermi('pile:occupy:edit')")
+    @PostMapping("/updateOrderAmount")
+    public AjaxResult updateOrderAmount(@RequestBody MakeOrderFreeDTO dto) {
+        return toAjax(orderPileOccupyService.updateOrderInfoForWeb(dto));
+    }
+
     /**
      * 删除占桩订单
      */
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/dto/MakeOrderFreeDTO.java b/jsowell-pile/src/main/java/com/jsowell/pile/dto/MakeOrderFreeDTO.java
new file mode 100644
index 000000000..0bb6207d5
--- /dev/null
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/dto/MakeOrderFreeDTO.java
@@ -0,0 +1,31 @@
+package com.jsowell.pile.dto;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+/**
+ * 修改占桩订单免费/修改金额DTO
+ *
+ * @author Lemon
+ * @Date 2023/9/8 15:04
+ */
+@Data
+public class MakeOrderFreeDTO {
+    private Long id;
+
+    /**
+     * 修改类型（1-直接免费；2-修改金额）
+     */
+    private String type;
+
+    /**
+     * 占桩订单
+     */
+    private String occupyCode;
+
+    /**
+     * 订单金额
+     */
+    private BigDecimal orderAmount;
+}
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/mapper/OrderPileOccupyMapper.java b/jsowell-pile/src/main/java/com/jsowell/pile/mapper/OrderPileOccupyMapper.java
index 5ba7307c3..158a9dd40 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/mapper/OrderPileOccupyMapper.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/mapper/OrderPileOccupyMapper.java
@@ -122,4 +122,11 @@ public interface OrderPileOccupyMapper {
      * @return 占桩订单集合
      */
     public List<OrderPileOccupy> selectOrderPileOccupyList(OrderPileOccupy orderPileOccupy);
+
+    /**
+     * 使该笔订单免费
+     * @param occupyCode
+     * @return
+     */
+    int makeOrderFree(String occupyCode);
 }
\ No newline at end of file
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/OrderPileOccupyService.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/OrderPileOccupyService.java
index 5c3ad9bd7..cf3595863 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/service/OrderPileOccupyService.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/OrderPileOccupyService.java
@@ -2,10 +2,7 @@ package com.jsowell.pile.service;
 
 import com.jsowell.common.core.page.PageResponse;
 import com.jsowell.pile.domain.OrderPileOccupy;
-import com.jsowell.pile.dto.PayOrderDTO;
-import com.jsowell.pile.dto.GenerateOccupyOrderDTO;
-import com.jsowell.pile.dto.QueryOccupyOrderDTO;
-import com.jsowell.pile.dto.RemoteGroundLockDTO;
+import com.jsowell.pile.dto.*;
 import com.jsowell.pile.vo.uniapp.OccupyOrderDetailVO;
 import com.jsowell.pile.vo.uniapp.OrderPileOccupyVO;
 
@@ -101,4 +98,11 @@ public interface OrderPileOccupyService{
      * @param occupyCode
      */
     OccupyOrderDetailVO getOccupyOrderDetail(String occupyCode);
+
+    /**
+     * 使该笔订单免费/修改订单金额（后管用）
+     * @param dto
+     * @return
+     */
+    int updateOrderInfoForWeb(MakeOrderFreeDTO dto);
 }
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/OrderPileOccupyServiceImpl.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/OrderPileOccupyServiceImpl.java
index ae705d449..a64e26dfb 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/OrderPileOccupyServiceImpl.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/OrderPileOccupyServiceImpl.java
@@ -191,7 +191,7 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
      * 占桩订单停止计费/停止占桩订单计费
      * 收到地锁升起指令，调用这个方法，停止计时
      *
-     * @param pileSn 充电站编号
+     * @param pileSn        充电站编号
      * @param connectorCode 枪口号
      */
     @Override
@@ -311,6 +311,7 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
 
     /**
      * 通过memberId查询未支付状态订单
+     *
      * @param memberId
      * @return
      */
@@ -354,6 +355,7 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
     /**
      * 根据桩编号、枪口号查询最近一条占桩订单
      * draft
+     *
      * @param pileSn
      * @param connectorCode
      * @return
@@ -373,6 +375,7 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
 
     /**
      * 查询占桩中的订单
+     *
      * @param pileSn
      * @param connectorCode
      * @return
@@ -413,6 +416,7 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
 
     /**
      * 获取占桩订单详情
+     *
      * @param occupyCode
      */
     @Override
@@ -429,6 +433,33 @@ public class OrderPileOccupyServiceImpl implements OrderPileOccupyService {
         return vo;
     }
 
+    /**
+     * 使该笔订单免费/修改订单金额（后管用）
+     *
+     * @param dto
+     * @return
+     */
+    @Override
+    public int updateOrderInfoForWeb(MakeOrderFreeDTO dto) {
+        // 先取type
+        String type = dto.getType();
+        if (StringUtils.equals("1", type)) {
+            // 直接免费
+            return orderPileOccupyMapper.makeOrderFree(dto.getOccupyCode());
+        } else {
+            // 修改订单金额
+            OrderPileOccupy occupy = selectByPrimaryKey(dto.getId().intValue());
+            BigDecimal orderAmount = occupy.getOrderAmount();
+            if (orderAmount.subtract(dto.getOrderAmount()).compareTo(BigDecimal.ZERO) < 0 ) {
+                // 说明改的金额要比实际订单金额大，不予修改
+                return 0;
+            }
+            occupy.setOrderAmount(dto.getOrderAmount());
+
+            return orderPileOccupyMapper.updateByPrimaryKeySelective(occupy);
+        }
+    }
+
     /*
      * 支付占桩订单
      *
diff --git a/jsowell-pile/src/main/resources/mapper/pile/OrderPileOccupyMapper.xml b/jsowell-pile/src/main/resources/mapper/pile/OrderPileOccupyMapper.xml
index 934bef39b..c4192af78 100644
--- a/jsowell-pile/src/main/resources/mapper/pile/OrderPileOccupyMapper.xml
+++ b/jsowell-pile/src/main/resources/mapper/pile/OrderPileOccupyMapper.xml
@@ -926,4 +926,12 @@
             <if test="pileConnectorCode != null  and pileConnectorCode != ''"> and pile_connector_code = #{pileConnectorCode}</if>
         </where>
     </select>
+
+    <update id="makeOrderFree">
+        update
+            order_pile_occupy
+        set
+            status = '1', pay_status = '2'
+        where occupy_code = #{occupyCode,jdbcType=VARCHAR}
+    </update>
 </mapper>
\ No newline at end of file