diff --git a/video-gen-api/app/api/v1/auth.py b/video-gen-api/app/api/v1/auth.py
index 86751082..1608a332 100644
--- a/video-gen-api/app/api/v1/auth.py
+++ b/video-gen-api/app/api/v1/auth.py
@@ -155,19 +155,12 @@ async def register(req: RegisterRequest, db: AsyncSession = Depends(get_db)):
             detail="该手机号已注册",
         )
 
-    existing_username = await db.execute(select(User).where(User.username == req.phone).limit(1))
-    if existing_username.scalar_one_or_none():
-        raise HTTPException(
-            status_code=status.HTTP_400_BAD_REQUEST,
-            detail="该手机号已注册",
-        )
-
     user = User(
         id=generate_id(),
         username=req.phone,
         phone=req.phone,
-        hashed_password=None,
-        password_set_at=None,
+        hashed_password=hash_password(req.password),
+        password_set_at=datetime.now(),
         credits=100,
         is_admin=False,
         user_type="frontend",
diff --git a/video-gen-api/app/schemas/auth.py b/video-gen-api/app/schemas/auth.py
index a562ba2e..1187765c 100644
--- a/video-gen-api/app/schemas/auth.py
+++ b/video-gen-api/app/schemas/auth.py
@@ -17,7 +17,7 @@ class SmsLoginRequest(BaseModel):
 class RegisterRequest(BaseModel):
     phone: str = Field(..., pattern=r"^1[3-9]\d{9}$", description="手机号，注册成功后 username 默认等于手机号")
     code: str = Field(..., min_length=4, max_length=8, description="注册短信验证码")
-
+    password: str = Field(..., min_length=6, description="新密码，至少6位")
 
 class SetPasswordRequest(BaseModel):
     new_password: str = Field(..., min_length=6, description="新密码，至少6位")