Multipoint control unit cascade conference registration method and system

The invention discloses a multipoint control unit cascade conference registration method and a multipoint control unit cascade conference registration system. The method comprises that: an application support center (ASC) receives a conference request from a graphic user interface (GUI), wherein the conference request carries the name and alias of a conference requested to be held; the ASC divides the conference into a plurality of sub-conferences according to the idle resource conditions of a plurality of multipoint control units (MCU) managed by the ASC; the ASC judges whether each sub-conference is a master conference or a slave conference, generates the registered name of the sub-conference which is the master conference according to the name and alias of the conference, and generates the registered name of the sub-conference which is the slave conference according to the alias of the conference; and for each sub-conference, the ASC transmits the registered name of the sub-conference to the MCU correspond