Embodiments of the present invention disclose a method for transmitting a multi-station control frame, an access point, and a system. The method includes: sending a multi-station control frame to each of a plurality of stations, where when the multi-station control frame is a request frame, the request frame is used to request each of the plurality of stations to send a first response frame corresponding to the multi-station control frame; and receiving the first response frame that is corresponding to the multi-station control frame and that is sent by each of the plurality of stations; or when the multi-station control frame is a second response frame, the second response frame is used to respond to data frames, management frames, or control frames that are transmitted by the plurality of stations; the multi-station control frame includes a legacy preamble field and a new preamble field; and the new preamble field includes a first signal field and a second signal field. The multi-station control frame occupies much fewer bytes than an 802.11ax multi-station control frame. Therefore, duration in which the multi-station control frame occupies a channel during transmission can be reduced.
展开▼
