The invention discloses a method for realizing the cross-region resource management. When processing the service connection resource request, the boundary CA of each region transmits the request to the special carrying network resource manager of its own region, and judging if the user device of said carrying network resource manager is in its own management region, if it is, processing relative process and feeding back the operation successful response to the CA; if not, processing relative pretreatment, and feeding back the response of successful pretreatment to the CA, and the CA receives and transmits the service connection source request the CA of next stage. The invention can realize the management of cross-region service connection resource and realize the interconnection and intercommunication between different regions.