diff --git a/internal/model/dto/wecom_scene_dto.go b/internal/model/dto/wecom_scene_dto.go
index 03a5fa8..eda2f2a 100644
--- a/internal/model/dto/wecom_scene_dto.go
+++ b/internal/model/dto/wecom_scene_dto.go
@@ -23,7 +23,7 @@ type InspectWeComTemplateParams struct {
 
 // WeComBusinessFieldListParams 查询企业微信审批场景可映射字段路径参数。
 type WeComBusinessFieldListParams struct {
-	BusinessType string `path:"business_type" required:"true" description:"业务类型 (refund_approval:退款审批, offline_recharge_approval:员工线下代充值审批)"`
+	BusinessType string `path:"business_type" required:"true" enum:"refund_approval,offline_recharge_approval,employee_collection_approval" description:"业务类型 (refund_approval:退款审批, offline_recharge_approval:员工线下代充值审批, employee_collection_approval:员工代收款核销审批)"`
 }
 
 // WeComBusinessFieldResponse 企业微信审批场景可映射业务字段响应。
@@ -67,7 +67,7 @@ type SaveWeComApprovalSceneRequest struct {
 
 // SaveWeComApprovalSceneParams 保存企业微信审批场景路径与请求参数。
 type SaveWeComApprovalSceneParams struct {
-	BusinessType string `path:"business_type" required:"true" description:"业务类型 (refund_approval:退款审批, offline_recharge_approval:员工线下代充值审批)；可先调用 GET /api/admin/wecom/scenes/{business_type}/fields 查询允许映射的业务字段"`
+	BusinessType string `path:"business_type" required:"true" enum:"refund_approval,offline_recharge_approval,employee_collection_approval" description:"业务类型 (refund_approval:退款审批, offline_recharge_approval:员工线下代充值审批, employee_collection_approval:员工代收款核销审批)；可先调用 GET /api/admin/wecom/scenes/{business_type}/fields 查询允许映射的业务字段"`
 	SaveWeComApprovalSceneRequest
 }