diff --git a/app/main/api/internal/service/whitelistService.go b/app/main/api/internal/service/whitelistService.go
index f027e87..8be8e2d 100644
--- a/app/main/api/internal/service/whitelistService.go
+++ b/app/main/api/internal/service/whitelistService.go
@@ -9,6 +9,7 @@ import (
 
 	"ycc-server/app/main/api/internal/config"
 	"ycc-server/app/main/model"
+	"ycc-server/common/xerr"
 	"ycc-server/pkg/lzkit/crypto"
 	"ycc-server/pkg/lzkit/lzUtils"
 
@@ -191,7 +192,12 @@ func (s *WhitelistService) ProcessOfflineFeature(
 		return false, 0, false, err
 	}
 
-	// 2. 检查是否已有白名单
+	// 2. 不支持下架的模块：whitelist_price < 0 表示该模块不开放下架功能
+	if feature.WhitelistPrice < 0 {
+		return false, 0, false, errors.Wrapf(xerr.NewErrMsg("该模块不支持下架"), "")
+	}
+
+	// 3. 检查是否已有白名单
 	exists, err := s.CheckWhitelistExists(ctx, idCard, feature.Id)
 	if err != nil {
 		return false, 0, false, err
@@ -203,7 +209,7 @@ func (s *WhitelistService) ProcessOfflineFeature(
 
 	price := feature.WhitelistPrice
 
-	// 3. 免费下架：直接创建白名单记录
+	// 4. 免费下架：直接创建白名单记录（whitelist_price = 0）
 	if price <= 0 {
 		if err := s.EnsureFreeWhitelist(ctx, session, idCard, feature, userId, orderId); err != nil {
 			return false, 0, false, err
@@ -211,13 +217,13 @@ func (s *WhitelistService) ProcessOfflineFeature(
 		return false, 0, true, nil
 	}
 
-	// 4. 付费下架：检查是否已有支付成功的订单
+	// 5. 付费下架：检查是否已有支付成功的订单
 	paidOrderId, err := s.findPaidWhitelistOrder(ctx, userId, idCard, feature.Id)
 	if err != nil {
 		return false, 0, false, err
 	}
 
-	// 5. 如果已有支付成功订单，补创建白名单记录
+	// 6. 如果已有支付成功订单，补创建白名单记录
 	if paidOrderId != "" {
 		if err := s.createWhitelistFromPaidOrder(ctx, session, idCard, feature, userId, orderId, paidOrderId, price); err != nil {
 			return false, 0, false, err
@@ -225,7 +231,7 @@ func (s *WhitelistService) ProcessOfflineFeature(
 		return false, price, true, nil
 	}
 
-	// 6. 需要支付
+	// 7. 需要支付
 	return true, price, false, nil
 }