A method for implementing dual connectivity includes: a first base station which a user equipment accesses completing related management of a connection of the user equipment in a second base station through a dual connectivity management interface between the present base station and second base station, thereby realizing dual connectivity of the user equipment to the first base station and the second base station. The base station includes a management module, configured to: when the present base station serves as the first base station which the user equipment accesses, complete the related management of the connection of the user equipment in the second base station through the dual connectivity management interface; an acceptance module, configured to: when serving as the second base station, accept related management of the first base station for the connection of the user equipment in the present base station through the dual connectivity management interface.