Method and system for carrying out direct communication of data among base stations

The invention provides a method and a system for carrying out direct communication of data among base stations. The method comprises the following steps that: after receiving a service initiating request sent by a calling subscriber terminal, a source base station broadcasts and sends a called subscriber searching request to adjacent base station through direct connection interface between the base stations; each adjacent base station searches a called subscriber terminal corresponding to the called subscriber searching request according to prestored in-cell member information; the adjacent base station which searches the called subscriber terminal replies a search success message to the source base station as a target base station; and after the source base station receives the search success message, a data direct communication link is established between the source base station and the target base station through the direct connection interface between the base stations. A great amount of data services are borne through the direct connection interfaces among the base stations, so that the direct communication of the data is realized, the load of a core network is reduced and the requirement of an access network on high flow is met.