A data processing method is provided, wherein the method includes for each region in multiple regions, generating, according to a correspondence between location information of a user in a user group and the region, a user appearing information bit set corresponding to the region, where a bit value of each bit in the user appearing information bit set indicates whether a corresponding user in the user group appears in the region; receiving a request message carrying a region indication parameter; querying, according to the region indication parameter, for a user appearing information bit set corresponding to a region indicated by the region indication parameter, and performing data processing according to the found user appearing information bit set. Thus, a user appearing information bit set corresponding to a region is generated, thereby reducing data storage space, and increasing computing efficiency and a computing speed when performing data processing.