Abstract: A service scheduling method and apparatus are provided, which relate to the field of communication technologies and are applied to a Wi-Fi network system, to resolve a problem that communication delays of a large amount of service data cannot be ensured when a communication channel in the Wi-Fi network system is limited. An example solution includes: a sending node obtains a waiting delay and a category of each data frame in a plurality of data frames at a current moment, determines a service priority of each data frame based on the category of each data frame, and determines, from the plurality of data frames, a target frame that is preferentially sent at the current moment based on the waiting delay, a preset delay, and the service priority of each data frame; and then the sending node sends the target frame to a receiving node at the current moment.