diff --git a/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/controller/CarController.java b/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/controller/CarController.java
index 865499e..6f32dc7 100644
--- a/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/controller/CarController.java
+++ b/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/controller/CarController.java
@@ -7,9 +7,6 @@ import com.taxi.servicedriveruser.service.CarService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RestController;
 
 /**
diff --git a/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/service/DriverCarBindingRelationshipService.java b/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/service/DriverCarBindingRelationshipService.java
index f496607..d690549 100644
--- a/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/service/DriverCarBindingRelationshipService.java
+++ b/online-taxi-public/service-driver-user/src/main/java/com/taxi/servicedriveruser/service/DriverCarBindingRelationshipService.java
@@ -13,7 +13,9 @@ import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.RequestBody;
 
 import javax.print.attribute.standard.NumberUp;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * <p>
@@ -73,21 +75,20 @@ public class DriverCarBindingRelationshipService{
     }
 
     public ResponseResult unbind(@RequestBody DriverCarBindingRelationship driverCarBindingRelationship){
-        QueryWrapper queryWrapper = new QueryWrapper();
-        queryWrapper.eq("driver_id",driverCarBindingRelationship.getDriverId());
-        queryWrapper.eq("car_id",driverCarBindingRelationship.getCarId());
-        int count = driverCarBindingRelationshipMapper.selectCount(queryWrapper);
+        Map<String, Object> queryMap = new HashMap<>();
+        queryMap.put("driver_id",driverCarBindingRelationship.getDriverId());
+        queryMap.put("car_id",driverCarBindingRelationship.getCarId());
+        queryMap.put("bind_state",DriverCarConstant.DRIVER_CAR_BIND );
+        List<DriverCarBindingRelationship> list = driverCarBindingRelationshipMapper.selectByMap(queryMap);
+        int count = list.size();
         if(count == 1){
-            driverCarBindingRelationship = driverCarBindingRelationshipMapper.selectOne(queryWrapper);
-            if(DriverCarConstant.DRIVER_CAR_UNBIND == driverCarBindingRelationship.getBindState()){
-                return ResponseResult.success(CommonStatusEnum.DRIVER_CAR_UNBIND_EXISTS);
-            }
+            driverCarBindingRelationship = list.get(0);
             driverCarBindingRelationship.setUnBindingTime(CommonUtils.getLocalDateTimeNow() );
             driverCarBindingRelationship.setBindState(DriverCarConstant.DRIVER_CAR_UNBIND);
             driverCarBindingRelationshipMapper.updateById(driverCarBindingRelationship);
         }else if(count > 1){//排除数据库存在脏数据
             return ResponseResult.fail(CommonStatusEnum.FAIL);
-        }else{
+        }else if(list.isEmpty()){
             return ResponseResult.fail(CommonStatusEnum.DRIVER_CAR_BIND_NOT_EXISTS);
         }
         return ResponseResult.success();