Direct connection link communication method and related equipment and system

An embodiment of the invention discloses a direct connection link communication method and related equipment and system. The method includes: a first station supporting a direction connection link building function transmits a direct connection link building request frame to an access point, and the first station receives a direct connection link building response frame transmitted by the access point, wherein the direct connection link building response frame comprises instruction information for instructing the first station to be encapsulated into the access point; the first station is encapsulated into the access point according to the instruction information and performs direct connection link communication with the second station. By the method, a direct connecting link communication building mechanism can be provided, and direct link communication between a station supporting a DLS function and another station which does not support the DLS function can be built under the circumstance that only the access point and one station support the DLS function.