diff --git a/backend/alembic/versions/80f8cb64544a_init_production_orders_products_tasks_.py b/backend/alembic/versions/80f8cb64544a_init_production_orders_products_tasks_.py
new file mode 100644
index 0000000..b0c8cd3
--- /dev/null
+++ b/backend/alembic/versions/80f8cb64544a_init_production_orders_products_tasks_.py
@@ -0,0 +1,85 @@
+"""init: production_orders, products, tasks, task_logs
+
+Revision ID: 80f8cb64544a
+Revises: 
+Create Date: 2026-08-04 10:08:19.670158
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '80f8cb64544a'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('production_orders',
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('order_no', sa.String(length=64), nullable=False, comment='订单编号'),
+    sa.Column('customer_info', sa.String(length=500), nullable=True, comment='客户信息'),
+    sa.Column('status', sa.String(length=50), nullable=False, comment='订单状态'),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False, comment='创建时间'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_production_orders_order_no'), 'production_orders', ['order_no'], unique=True)
+    op.create_table('products',
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('serial_number', sa.String(length=16), nullable=False, comment='产品序列号(16位)'),
+    sa.Column('order_id', sa.UUID(), nullable=False, comment='所属订单ID'),
+    sa.Column('material_id', sa.String(length=64), nullable=True, comment='物料ID(逻辑外键→老系统)'),
+    sa.Column('parent_product_id', sa.UUID(), nullable=True, comment='父产品ID'),
+    sa.Column('status', sa.String(length=50), nullable=False, comment='产品状态'),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False, comment='创建时间'),
+    sa.ForeignKeyConstraint(['order_id'], ['production_orders.id'], ),
+    sa.ForeignKeyConstraint(['parent_product_id'], ['products.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_products_serial_number'), 'products', ['serial_number'], unique=True)
+    op.create_table('tasks',
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('product_id', sa.UUID(), nullable=False, comment='所属产品ID'),
+    sa.Column('parent_task_id', sa.UUID(), nullable=True, comment='父任务ID'),
+    sa.Column('task_name', sa.String(length=200), nullable=False, comment='任务名称'),
+    sa.Column('assignee_id', sa.String(length=64), nullable=True, comment='负责人ID(逻辑外键→老系统)'),
+    sa.Column('status', sa.String(length=50), nullable=False, comment='任务状态'),
+    sa.Column('notify_parent_on_complete', sa.Boolean(), nullable=False, comment='完成后是否通知父任务'),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False, comment='创建时间'),
+    sa.ForeignKeyConstraint(['parent_task_id'], ['tasks.id'], ),
+    sa.ForeignKeyConstraint(['product_id'], ['products.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_tasks_parent_task_id'), 'tasks', ['parent_task_id'], unique=False)
+    op.create_table('task_logs',
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('task_id', sa.UUID(), nullable=False, comment='所属任务ID'),
+    sa.Column('operator_id', sa.String(length=64), nullable=True, comment='操作人ID(逻辑外键→老系统)'),
+    sa.Column('action_type', sa.String(length=50), nullable=False, comment='操作类型'),
+    sa.Column('remark', sa.Text(), nullable=True, comment='备注'),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False, comment='创建时间'),
+    sa.ForeignKeyConstraint(['task_id'], ['tasks.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_task_logs_task_id'), 'task_logs', ['task_id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_task_logs_task_id'), table_name='task_logs')
+    op.drop_table('task_logs')
+    op.drop_index(op.f('ix_tasks_parent_task_id'), table_name='tasks')
+    op.drop_table('tasks')
+    op.drop_index(op.f('ix_products_serial_number'), table_name='products')
+    op.drop_table('products')
+    op.drop_index(op.f('ix_production_orders_order_no'), table_name='production_orders')
+    op.drop_table('production_orders')
+    # ### end Alembic commands ###
diff --git a/backend/app/api/v1/router.py b/backend/app/api/v1/router.py
index 4f13dd1..17e9cc1 100644
--- a/backend/app/api/v1/router.py
+++ b/backend/app/api/v1/router.py
@@ -1,7 +1,15 @@
 from fastapi import APIRouter
 
+from app.api.v1.endpoints.products import router as products_router
+from app.api.v1.endpoints.tasks import router as tasks_router
+from app.api.v1.endpoints.orders import router as orders_router
+from app.api.v1.endpoints.dashboard import router as dashboard_router
+from app.api.v1.endpoints.auth import router as auth_router
+
 api_router = APIRouter()
 
-# 后续在此注册子路由
-# from app.api.v1 import users, products, orders, ...
-# api_router.include_router(users.router, prefix="/users", tags=["用户管理"])
+api_router.include_router(auth_router)
+api_router.include_router(dashboard_router)
+api_router.include_router(orders_router)
+api_router.include_router(products_router)
+api_router.include_router(tasks_router)
diff --git a/backend/app/core/mom_database.py b/backend/app/core/mom_database.py
new file mode 100644
index 0000000..8c0d853
--- /dev/null
+++ b/backend/app/core/mom_database.py
@@ -0,0 +1,24 @@
+"""MOM 系统数据库 — 只读连接，用于登录验证 sys_user 表"""
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, Session
+from sqlalchemy.pool import NullPool
+
+# MOM 数据库连接（同步引擎，仅用于登录验证）
+import os
+# Docker 容器内用 host.docker.internal 访问宿主机
+MOM_HOST = os.environ.get("MOM_DB_HOST", "host.docker.internal")
+MOM_PORT = os.environ.get("MOM_DB_PORT", "5435")
+MOM_DATABASE_URL = f"postgresql://prod_user:StrongPassword123!@{MOM_HOST}:{MOM_PORT}/inventory_system"
+
+mom_engine = create_engine(
+    MOM_DATABASE_URL,
+    echo=False,
+    poolclass=NullPool,  # 登录频率低，不用连接池
+)
+
+MomSessionLocal = sessionmaker(
+    mom_engine,
+    class_=Session,
+    autocommit=False,
+    autoflush=False,
+)
diff --git a/backend/app/models/__init__.py b/backend/app/models/__init__.py
index a28a5f9..a9381da 100644
--- a/backend/app/models/__init__.py
+++ b/backend/app/models/__init__.py
@@ -4,7 +4,6 @@ from app.models.production_order import ProductionOrder
 from app.models.product import Product
 from app.models.task import Task
 from app.models.task_log import TaskLog
-
 __all__ = [
     "Base",
     "ProductionOrder",
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 1fbc985..92335fe 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -36,3 +36,10 @@ typing_extensions==4.16.0
 uvicorn==0.52.1
 watchfiles==1.2.0
 websockets==17.0.1
+
+# QR code generation
+qrcode[pil]==8.2
+Pillow==12.3.0
+
+# MOM 登录对接 — Werkzeug scrypt 密码验证
+werkzeug==3.0.6