Channel distribution and purchase-sale-stock network management method and system based on web

The invention discloses a channel distribution and purchase-sale-stock network management method based on a web. The method comprises the following steps that (1), a web service platform adopting a B/S structure is constructed, and a service terminal, a web service exchange terminal, an information processing module, a middle application server, a data processing module and a database server are arranged in sequence and are connected; (2), inventory information data, supplier information data, commodity information data and historical operation data are set in the database server; (3), a user port, a user interface, an operation method and data expressions are configured on the service terminal; (4), an application management module is arranged in the middle application server and comprises a commodity management module, a purchase management module, a sale management module, a supplier management module, a distribution branch management module and an inventory management module. The invention further discloses a system for implementing the method.