diff --git a/app/models/merchant_product.py b/app/models/merchant_product.py
index 286835a..8831cb3 100644
--- a/app/models/merchant_product.py
+++ b/app/models/merchant_product.py
@@ -13,7 +13,6 @@ class MerchantProductDB(Base):
     id = Column(Integer, primary_key=True, autoincrement=True)
     merchant_id = Column(Integer, ForeignKey("merchants.id", ondelete="CASCADE"), index=True)
     name = Column(String(100), nullable=False)
-    category_id = Column(Integer, ForeignKey("merchant_product_categories.id"), nullable=False)
     image_url = Column(String(500), nullable=False)
     product_price = Column(Float, nullable=False)  # 原价
     sale_price = Column(Float, nullable=False)     # 售价
@@ -28,7 +27,6 @@ class MerchantProductDB(Base):
 class MerchantProductCreate(BaseModel):
     merchant_id: int
     name: str = Field(..., max_length=100)
-    category_id: int
     image_url: str = Field(..., max_length=500)
     product_price: float = Field(..., gt=0)
     sale_price: float = Field(..., gt=0)
@@ -38,7 +36,6 @@ class MerchantProductCreate(BaseModel):
 
 class MerchantProductUpdate(BaseModel):
     name: Optional[str] = Field(None, max_length=100)
-    category_id: Optional[int] = None
     image_url: Optional[str] = Field(None, max_length=500)
     product_price: Optional[float] = Field(None, gt=0)
     sale_price: Optional[float] = Field(None, gt=0)
@@ -50,8 +47,6 @@ class MerchantProductInfo(BaseModel):
     id: int
     merchant_id: int
     name: str
-    category_id: int
-    category_name: str  # 通过关联查询获取
     image_url: str
     product_price: float
     sale_price: float