Inventory data synchronization method and inventory data synchronization module

The embodiment of the invention provides an inventory data synchronization method and an inventory data synchronization module, which are used for realizing quick synchronization of inventory data between two systems and have high timeliness and low time delay. The method provided by the embodiment of the invention comprises the steps of if detecting that an inventory updating instruction of a first system is triggered, updating inventory data of the first system; according to the inventory updating instruction, executing an inventory synchronization instruction on a second system sharing inventory data with the first system, wherein the inventory synchronization instruction comprises the steps of obtaining basic data of the first system and the second system; according to the basic data and the inventory updating instruction, creating an intermediate layer data table, wherein the intermediate layer data table is used for reflecting the change state of the inventory data between the first system and the secon