The invention discloses a power-saving method and device for wireless fidelity WiFi access point equipment, and belongs to the field of wireless communication. According to the invention, when a predetermined maximal connection quantity of the wireless access point equipment is reached, the working mode of the conventional wireless access point equipment is changed, the sending period of the beacon frame of the wireless access point equipment is prolonged, a maximal power sending beacon frame in the communication power used during the communication with a wireless terminal connected with the wireless access point equipment is arranged, respond to any information sent by an unconnected wireless terminal is stopped, and the sleep time of a communicating module in a wireless local area network is determined according to channel bandwidth of the wireless local area network distributed for the wireless terminal connected with the wireless access point equipment or the communication bandwidth of the wide area network acquired by the wireless access point equipment, so as to reduce electricity consumption. Therefore, the using time of the portable wireless access point equipment can be prolonged.