The present invention discloses a method, an apparatus, and a system for collecting information about a wireless local area network WLAN access point AP. The method specifically includes: receiving, by a base station, WLAN AP request information sent from a network device in a Minimization of Drive Tests MDT measurement configuration process, where the WLAN AP request information is used to request a user equipment UE to report WLAN AP information; sending, by the base station, the WLAN AP request information to the UE; receiving, by the base station, the WLAN AP information sent from the UE, where the WLAN AP information is collected by the UE according to the WLAN AP request information; and sending, by the base station, the WLAN AP information to the network device. In the technical solutions provided in the embodiments of the present invention, a UE may collect and report WLAN AP information based on architecture of a mobile communications network and by using an MDT measurement configuration process. In this way, WLAN AP information can be conveniently collected.