Relay node selection method and apparatus

The embodiments of the invention provide a relay node selection method and apparatus. The method comprises: an AP receiving relay indication information sent by a relay node, and according to the relay indication information, establishing an association with the relay node; the AP receiving an association request message send by an STA, and according to the association request message, establishing an association with the STA; and the AP determining a destination relay node corresponding to the STA in the relay node which the AP establishes the association with so as to communicate with the STA through the destination relay node. According to the embodiments of the invention, a relay mechanism is added between the AP and the STA, and the AP establishes the associations with the relay node and the STA, obtains the destination relay node which is selected by the STA or the AP and is corresponding to the STA, and communicates with the STA through the destination relay node, so that the system throughput can be improved, and the problems of substantially decreased throughput and low communication reliability in case of large WLAN coverage scope are solved.