MES system is based on factory data simulation, scenario application as the core and driven by industrial chain collaboration. It connects intelligent equipment such as production equipment, AGV and manipulator, integrates digital technologies such as edge computing, big data and Internet of things, focuses on lean manufacturing and realizes innovation management of enterprise value chain. It can not only provide enterprises with functional modules including production process control, equipment access and quality traceability, but also connect order scheduling, material flow and storage, so as to realize the machine pull of material loading and unloading and the intelligent control of production rhythm, so as to meet the management requirements of enterprises with multiple organizations and complex forms of manufactured products.