diff --git a/app/api/endpoints/merchant_order.py b/app/api/endpoints/merchant_order.py
index f6ad205..70343a4 100644
--- a/app/api/endpoints/merchant_order.py
+++ b/app/api/endpoints/merchant_order.py
@@ -7,7 +7,7 @@ from app.models.merchant_order import (
     MerchantOrderInfo,
     generate_order_id,
     generate_verify_code,
-    OrderStatus
+    MerchantOrderStatus
 )
 from app.models.merchant_product import MerchantProductDB
 from app.models.database import get_db
@@ -50,7 +50,7 @@ async def create_order(
         user_id=current_user.userid,
         merchant_product_id=order.merchant_product_id,
         order_amount=order.order_amount,
-        status=OrderStatus.CREATED,  # 创建时状态为已下单
+        status=MerchantOrderStatus.CREATED,  # 创建时状态为已下单
         order_verify_code=verify_code
     )
     db.add(db_order)
@@ -101,7 +101,7 @@ async def verify_order(
     # 更新核销时间和核销用户
     order.verify_time = datetime.now(timezone.utc)
     order.verify_user_id = current_user.userid
-    order.status = OrderStatus.VERIFIED  # 更新为已核销状态
+    order.status = MerchantOrderStatus.VERIFIED  # 更新为已核销状态
     
     try:
         db.commit()
@@ -122,14 +122,14 @@ async def set_order_unverified(
     """设置订单为未核销状态"""
     order = db.query(MerchantOrderDB).filter(
         MerchantOrderDB.order_id == order_id,
-        MerchantOrderDB.status == OrderStatus.CREATED  # 只有已下单状态可以设为未核销
+        MerchantOrderDB.status == MerchantOrderStatus.CREATED  # 只有已下单状态可以设为未核销
     ).first()
     
     if not order:
         return error_response(code=404, message="订单不存在或状态不正确")
     
     # 更新状态为未核销
-    order.status = OrderStatus.UNVERIFIED
+    order.status = MerchantOrderStatus.UNVERIFIED
     
     try:
         db.commit()
@@ -151,14 +151,14 @@ async def apply_refund(
     order = db.query(MerchantOrderDB).filter(
         MerchantOrderDB.order_id == order_id,
         MerchantOrderDB.user_id == current_user.userid,  # 只能申请自己的订单
-        MerchantOrderDB.status.in_([OrderStatus.CREATED, OrderStatus.UNVERIFIED])  # 只有未核销的订单可以退款
+        MerchantOrderDB.status.in_([MerchantOrderStatus.CREATED, MerchantOrderStatus.UNVERIFIED])  # 只有未核销的订单可以退款
     ).first()
     
     if not order:
         return error_response(code=404, message="订单不存在或状态不允许退款")
     
     # 更新状态为退款中
-    order.status = OrderStatus.REFUNDING
+    order.status = MerchantOrderStatus.REFUNDING
     
     try:
         db.commit()
@@ -179,14 +179,14 @@ async def confirm_refund(
     """确认退款（管理员）"""
     order = db.query(MerchantOrderDB).filter(
         MerchantOrderDB.order_id == order_id,
-        MerchantOrderDB.status == OrderStatus.REFUNDING  # 只能确认退款中的订单
+        MerchantOrderDB.status == MerchantOrderStatus.REFUNDING  # 只能确认退款中的订单
     ).first()
     
     if not order:
         return error_response(code=404, message="订单不存在或状态不正确")
     
     # 更新状态为已退款
-    order.status = OrderStatus.REFUNDED
+    order.status = MerchantOrderStatus.REFUNDED
     
     try:
         db.commit()
diff --git a/app/models/merchant_order.py b/app/models/merchant_order.py
index 702c91b..0c13354 100644
--- a/app/models/merchant_order.py
+++ b/app/models/merchant_order.py
@@ -9,12 +9,12 @@ import random
 import time
 import enum
 
-class OrderStatus(str, enum.Enum):
-    CREATED = "created"      # 已下单
-    UNVERIFIED = "unverified"  # 未核销
-    VERIFIED = "verified"    # 已核销
-    REFUNDING = "refunding"  # 退款中
-    REFUNDED = "refunded"    # 已退款
+class MerchantOrderStatus(str, enum.Enum):
+    CREATED = "CREATED"       # 已下单
+    UNVERIFIED = "UNVERIFIED" # 未核销
+    VERIFIED = "VERIFIED"     # 已核销
+    REFUNDING = "REFUNDING"   # 退款中
+    REFUNDED = "REFUNDED"     # 已退款
 
 class MerchantOrderDB(Base):
     __tablename__ = "merchant_orders"
@@ -24,7 +24,7 @@ class MerchantOrderDB(Base):
     user_id = Column(Integer, ForeignKey("users.userid"), nullable=False)
     merchant_product_id = Column(Integer, ForeignKey("merchant_products.id"), nullable=False)
     order_amount = Column(DECIMAL(10,2), nullable=False)
-    status = Column(Enum(OrderStatus), nullable=False, default=OrderStatus.CREATED)
+    status = Column(Enum(MerchantOrderStatus), nullable=False, default=MerchantOrderStatus.CREATED)
     order_verify_code = Column(String(21), unique=True, nullable=False)
     verify_time = Column(DateTime(timezone=True), nullable=True)
     verify_user_id = Column(Integer, ForeignKey("users.userid"), nullable=True)
@@ -41,7 +41,7 @@ class MerchantOrderInfo(BaseModel):
     user_id: int
     merchant_product_id: int
     order_amount: float
-    status: OrderStatus
+    status: MerchantOrderStatus
     order_verify_code: str
     verify_time: Optional[datetime]
     verify_user_id: Optional[int]