The present invention provides a method for processing terminal membership based on a hybrid access mode cell, which method comprises: when the CSG member state of a terminal changes to a new CSG member state, a core network or a HNB gateway informing an access network element of the information about the new CSG member state; and the access network element processing the terminal according to information about the new CSG member state. The present invention further provides a system for processing terminal membership based on a hybrid access mode cell. In the present invention, when the subscription information changes when a terminal is in the connected state, not only the subscription information stored in the terminal and the core network or the HNB gateway is changed, but also the access network element which it accesses modifies its access identity to be a new CSG member state, thus the non-subscribed users and the subscribers can be processed differently and accurately.