An embodiment of the invention provides a data processing method and device. Each client information table in a database is converted into metadata files carrying table structure information and client data files carrying client information in the table periodically, and total client attribute data are loaded to a distributed cache system actively by loading the metadata files and the client data files to the distributed cache system. By means of the method and the device, mass client attribute data are cached through the distributed cache system, so that the response speed, the throughput and the stability of client attribute data providing can be effectively guaranteed.