The invention discloses a method and a system for processing the asset information of a communication unit by a master station of an acquisition system, which comprises the following steps: obtainingthe identification information of a communication unit which is qualified in detection, and establishing the asset information file of the communication unit; the associated terminal information of each communication unit in operation is bound with corresponding identity identification information to perform asset relationship binding, and an asset information database of the communication unit isestablished; issuing a read call instruction to obtain the identity information of each communication unit; determining whether each of the acquired communication units is a conforming product; comparing the identity information of each communication unit in the qualified product and the identity identification information in the asset relationship binding data in the asset information database of the communication unit according to the assigned terminal information, and obtaining a comparison result; Generating an identity information change event when the identity information is inconsistent; the asset relationship binding is performed by changing the identity information of the communication unit corresponding to the identity information changing event and the associated terminal information.