diff --git a/controller/park.go b/controller/park.go
index f441842..ed7a1e0 100644
--- a/controller/park.go
+++ b/controller/park.go
@@ -2,7 +2,6 @@ package controller
 
 import (
 	"electricity_bill_calc/model"
-	"electricity_bill_calc/repository"
 	"electricity_bill_calc/response"
 	"electricity_bill_calc/security"
 	"electricity_bill_calc/service"
@@ -46,7 +45,7 @@ func listAllParksUnderSessionUser(c *gin.Context) {
 		result.Failure(http.StatusInternalServerError, "内部缓存错误，需要重新登录。")
 		return
 	}
-	parks, err := repository.ParkRepo.ListAllParkBelongsTo(userSession.Uid)
+	parks, err := service.ParkService.ListAllParkBelongsTo(userSession.Uid)
 	if err != nil {
 		result.Error(http.StatusInternalServerError, err.Error())
 		return
@@ -57,7 +56,7 @@ func listAllParksUnderSessionUser(c *gin.Context) {
 func listAllParksUnderSpecificUser(c *gin.Context) {
 	result := response.NewResult(c)
 	requestUserId := c.Param("uid")
-	parks, err := repository.ParkRepo.ListAllParkBelongsTo(requestUserId)
+	parks, err := service.ParkService.ListAllParkBelongsTo(requestUserId)
 	if err != nil {
 		result.Error(http.StatusInternalServerError, err.Error())
 		return
@@ -122,7 +121,7 @@ func modifyPark(c *gin.Context) {
 	requestParkId := c.Param("pid")
 	formData := new(_ParkInfoFormData)
 	c.BindJSON(formData)
-	park, err := repository.ParkRepo.FetchParkDetail(requestParkId)
+	park, err := service.ParkService.FetchParkDetail(requestParkId)
 	if err != nil {
 		result.Error(http.StatusInternalServerError, err.Error())
 		return
@@ -155,7 +154,7 @@ func fetchParkDetail(c *gin.Context) {
 		return
 	}
 	requestParkId := c.Param("pid")
-	park, err := repository.ParkRepo.FetchParkDetail(requestParkId)
+	park, err := service.ParkService.FetchParkDetail(requestParkId)
 	if err != nil {
 		result.Error(http.StatusInternalServerError, err.Error())
 		return
diff --git a/repository/park.go b/repository/park.go
deleted file mode 100644
index d9cf45c..0000000
--- a/repository/park.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package repository
-
-import (
-	"electricity_bill_calc/exceptions"
-	"electricity_bill_calc/global"
-	"electricity_bill_calc/model"
-
-	"xorm.io/builder"
-)
-
-type _ParkRepository struct{}
-
-var ParkRepo _ParkRepository
-
-func (_ParkRepository) ListAllParkBelongsTo(uid string) ([]model.Park, error) {
-	parks := make([]model.Park, 0)
-	err := global.DBConn.
-		Where(builder.Eq{"user_id": uid}).
-		NoAutoCondition().
-		Find(&parks)
-	if err != nil {
-		return make([]model.Park, 0), err
-	}
-	return parks, nil
-}
-
-func (_ParkRepository) FetchParkDetail(pid string) (*model.Park, error) {
-	var park = &model.Park{}
-	has, err := global.DBConn.ID(pid).NoAutoCondition().Get(park)
-	if err != nil {
-		return nil, err
-	}
-	if !has {
-		return nil, exceptions.NewNotFoundError("未找到符合条件的园区记录。")
-	}
-	return park, nil
-}
-
-func (_ParkRepository) EnsurePark(uid, pid string) (bool, error) {
-	return global.DBConn.Table(&model.Park{}).Where(builder.Eq{"user_id": uid, "id": pid}).Exist()
-}
diff --git a/service/park.go b/service/park.go
index 5f4bf45..7367c94 100644
--- a/service/park.go
+++ b/service/park.go
@@ -63,3 +63,31 @@ func (_ParkService) DeletePark(uid, pid string) error {
 	}
 	return nil
 }
+
+func (_ParkService) ListAllParkBelongsTo(uid string) ([]model.Park, error) {
+	parks := make([]model.Park, 0)
+	err := global.DBConn.
+		Where(builder.Eq{"user_id": uid}).
+		NoAutoCondition().
+		Find(&parks)
+	if err != nil {
+		return make([]model.Park, 0), err
+	}
+	return parks, nil
+}
+
+func (_ParkService) FetchParkDetail(pid string) (*model.Park, error) {
+	var park = &model.Park{}
+	has, err := global.DBConn.ID(pid).NoAutoCondition().Get(park)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, exceptions.NewNotFoundError("未找到符合条件的园区记录。")
+	}
+	return park, nil
+}
+
+func (_ParkService) EnsurePark(uid, pid string) (bool, error) {
+	return global.DBConn.Table(&model.Park{}).Where(builder.Eq{"user_id": uid, "id": pid}).Exist()
+}