diff --git a/service/maintenance_fee.go b/service/maintenance_fee.go
index 9fc3eb7..22ea876 100644
--- a/service/maintenance_fee.go
+++ b/service/maintenance_fee.go
@@ -131,14 +131,22 @@ func (_MaintenanceFeeService) EnsureFeeBelongs(uid, mid string) (bool, error) {
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
 
-	exists, err := global.DB.NewSelect().Model((*model.Park)(nil)).
+	parks := make([]model.Park, 0)
+	err := global.DB.NewSelect().Model(&parks).
 		Relation("MaintenanceFees").
 		Where("p.user_id = ?", uid).
-		Where("m.id = ?", mid).
-		Exists(ctx)
+		Scan(ctx)
 	if err != nil {
 		return false, err
 	}
+	exists := lo.Reduce(parks, func(acc bool, elem model.Park, _ int) bool {
+		for _, e := range elem.MaintenanceFees {
+			if e.Id == mid {
+				return acc || true
+			}
+		}
+		return acc || false
+	}, false)
 	if !exists {
 		return false, exceptions.NewNotFoundError("指定维护费所属园区未找到。")
 	}