A resource indication method in a wireless local area network is provided, where the method includes generating, by an access point, a data frame that includes a preamble, where the preamble includes a signaling indication part B (SIG-B), the SIG-B includes a common part and a user part following the common part. The common part is used to indicate a quantity of scheduled stations, identification information of the scheduled station, and a location of communication resource information of the scheduled station in the user part, the user part is used to indicate the communication resource information of the scheduled station, and the communication resource information includes resource indication information, MCS information of a data part, spatial flow quantity information, or power control information; and sending the data frame.