Production and logistics management method and system

The invention discloses a production and logistics management method and system. The production and logistics management system mainly comprises a central system, a production system and a logistics system, wherein the central system is used for acquiring information of suppliers and customers; the production system is connected to the central system, and is used for acquiring material data, stock data, capacity data and customer demands for producing according to the information of the suppliers and the customers acquired by the central system; the logistics system is connected to the production system, and is used for dispatching distribution vehicles according to the customer demands; the system acquires a first-stage estimated quantity to obtain a material estimated quantity, then acquires a second-stage estimated quantity for planned production and acquires a third-stage order of multiple customers for production and preparation, and the logistics system dispatches the burden and the route of each delive