Method and apparatus for transmitting wireless local area network data

Embodiments of the present invention relate to the field of communications, and provide a method and an apparatus for transmitting wireless local area network data. The method comprises: when a radio channel use right is obtained, an access point (AP) constructing a radio frame, the radio frame comprising at least a preamble part, a control field and a data field, and the data field comprising at least one downlink data field; the AP sending the preamble part and the control field to a station (STA) associated with the AP; and the AP sending wireless local area network data to the STA associated with the AP in the downlink data field of the radio frame. The apparatus comprises a constructing module, a first sending module, and a second sending module. By using the present invention, wireless local area network data can be transmitted by means of a one-to-many relationship from an AP to STAs and a many-to-one relationship from the STAs to the AP, thereby improving the utilization rate of a spectrum and the use efficiency of a network.