This application provides a wireless local area network configuration method and a device, and relates to the field of communications technologies, so as to increase a success rate of configuring authentication information of a home wireless local area network for a home device, and improve efficiency in connecting the home device to the home wireless local area network. A specific solution is as follows: A terminal obtains authentication information of a first wireless local area network, configures an SSID of the first wireless local area network as a hidden SSID, and sends at least one first probe request frame, where the first probe request frame carries at least a part of the authentication information of the first wireless local area network.