Method and device for controlling router and router

The invention discloses a method and a device for controlling a router and the router. The method comprises the following steps of detecting whether a master control card is inserted into the router after the master control card in the router is electrified; if detecting that the master control card is inserted into the router, loading a first distributed main program of the master control board after receiving a distributed main program loading instruction sent by the master control card, wherein the distributed main program loading instruction is sent after the master control card loads a second distributed main program of the master control card; if detecting that the master control card is not inserted into the router, loading a centralized main program of the master control board; and electrifying a business card included in the router to complete startup of the router. According to the scheme, the diversification of the purposes of the router is realized and the diversification demand of a user can be m