A system and method for wafer lot identity (ID) management including a storage device and an information process module. The storage device is capable of storing a plurality of ID mapping records, each ID mapping record storing a client lot ID and a supplier lot ID relationship. The information process module is configured to receive an information request with the client lot ID from a client, acquire the supplier lot ID from the ID mapping record according to the received client lot ID, acquire manufacturing information or logistical information according to the acquired supplier lot ID, and send the manufacturing information or the logistical information to the client.