diff --git a/src/main/java/com/sczx/pay/controller/AliAuthPaymentController.java b/src/main/java/com/sczx/pay/controller/AliAuthPaymentController.java
index 061749a..9db5ed6 100644
--- a/src/main/java/com/sczx/pay/controller/AliAuthPaymentController.java
+++ b/src/main/java/com/sczx/pay/controller/AliAuthPaymentController.java
@@ -45,4 +45,11 @@ public class AliAuthPaymentController {
         log.info("收到支付宝查询免押冻结请求: {}", alipayQueryFreezeRequest);
         return alipayService.queryFundFreeze(alipayQueryFreezeRequest);
     }
+
+    @ApiOperation(value = "完结冻结接口")
+    @PostMapping("/finishFreeze")
+    public AlipayResponse finishFreeze(@RequestBody AlipayFinishFreezeRequest alipayFinishFreezeRequest) {
+        log.info("收到支付宝完结免押冻结请求: {}", alipayFinishFreezeRequest);
+        return alipayService.finishFreeze(alipayFinishFreezeRequest);
+    }
 }
diff --git a/src/main/java/com/sczx/pay/dto/AlipayFinishFreezeRequest.java b/src/main/java/com/sczx/pay/dto/AlipayFinishFreezeRequest.java
new file mode 100644
index 0000000..c357861
--- /dev/null
+++ b/src/main/java/com/sczx/pay/dto/AlipayFinishFreezeRequest.java
@@ -0,0 +1,19 @@
+package com.sczx.pay.dto;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@ApiModel("支付宝资金冻结请求参数")
+@Data
+public class AlipayFinishFreezeRequest {
+    private String companyId;
+    @ApiModelProperty(value = "支付宝资金授权订单号")
+    private String authNo;
+
+    @ApiModelProperty(value = "解冻请求流水号")
+    private String outRequestNo;
+
+    @ApiModelProperty(value = "解冻金额")
+    private String amount;
+}
diff --git a/src/main/java/com/sczx/pay/service/AlipayService.java b/src/main/java/com/sczx/pay/service/AlipayService.java
index 181a6cd..4ec9519 100644
--- a/src/main/java/com/sczx/pay/service/AlipayService.java
+++ b/src/main/java/com/sczx/pay/service/AlipayService.java
@@ -1,6 +1,7 @@
 package com.sczx.pay.service;
 
 import com.sczx.pay.dto.*;
+import org.springframework.web.bind.annotation.RequestBody;
 
 import java.util.Map;
 
@@ -45,6 +46,11 @@ public interface AlipayService {
      */
     AlipayQueryFreezeResponse queryFundFreeze(AlipayQueryFreezeRequest alipayQueryFreezeRequest);
 
+    /**
+     * 完结冻结接口
+     */
+    AlipayResponse finishFreeze(AlipayFinishFreezeRequest alipayFinishFreezeRequest);
+
     /**
      * 验证通知签名
      */
diff --git a/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java b/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
index e9aae05..9adbcad 100644
--- a/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
+++ b/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
@@ -455,6 +455,50 @@ public class AlipayServiceImpl implements AlipayService {
         return response;
     }
 
+    @Override
+    public AlipayResponse finishFreeze(AlipayFinishFreezeRequest alipayFinishFreezeRequest) {
+        AlipayResponse response = new AlipayResponse();
+        try {
+            // 构造请求参数以调用接口
+            AlipayFundAuthOrderUnfreezeRequest request = new AlipayFundAuthOrderUnfreezeRequest();
+            AlipayFundAuthOrderUnfreezeModel model = new AlipayFundAuthOrderUnfreezeModel();
+
+            // 设置支付宝资金授权订单号
+            model.setAuthNo(alipayFinishFreezeRequest.getAuthNo());
+
+            // 设置解冻请求流水号
+            model.setOutRequestNo(alipayFinishFreezeRequest.getOutRequestNo());
+
+            // 设置本次操作解冻的金额
+            model.setAmount(alipayFinishFreezeRequest.getAmount());
+
+            // 设置商户对本次解冻操作的附言描述
+            model.setRemark("还车解冻押金");
+            request.setBizModel(model);
+            // 第三方代调用模式下请设置app_auth_token
+            // request.putOtherTextParam("app_auth_token", "<-- 请填写应用授权令牌 -->");
+            log.info("完结免押冻结请求 : {}",request);
+            AlipayFundAuthOrderUnfreezeResponse  unFreezeResponse  = alipaySdkUtil.execute(request);
+            log.info("完结免押冻结响应 : {}",unFreezeResponse.getBody());
+
+            if (unFreezeResponse.isSuccess()) {
+                response.setSuccess(true);
+                response.setCode("SUCCESS");
+                response.setMessage("完结免押冻结成功");
+            } else {
+                response.setSuccess(false);
+                response.setCode("FAIL");
+                response.setMessage("完结免押冻结失败: " + unFreezeResponse.getMsg() + ":" + unFreezeResponse.getSubMsg());
+            }
+        } catch (Exception e) {
+            log.error("支付宝完结免押冻结异常，公司ID: {}, 订单号: {}", alipayFinishFreezeRequest.getCompanyId(), alipayFinishFreezeRequest.getOutRequestNo(), e);
+            response.setSuccess(false);
+            response.setCode("FAIL");
+            response.setMessage("支付宝完结免押冻结失败异常: " + e.getMessage());
+        }
+        return response;
+    }
+
     @Override
     public boolean verifyNotifySign(Long companyId, Map<String, String> params) {
         try {