Data equality processing method, device and system based on mapping and protocol

The invention discloses a data equality processing method, a device and a system based on mapping and protocol. The data equality processing method comprises the steps of: obtaining data submitted by a client; initially zoning the obtained data according to the number of preset mappers; respectively mapping the data in initial zones to obtain intermediate result data; invoking a function of a zoning device; zoning fine granularity of the intermediate result data according to the number of preset fine granularity zones, wherein the number of the preset fine granularity zones is larger than the number of protocol zones; outputting intermediate result data quantity information in each fine granularity zone to a working server; receiving a corresponding relationship between the fine granularity zones returned by the working server and the protocol zones; combining the intermediate result data which belong to the same protocol zones in the fine granularity zones; outputting to the corresponding protocol zones; pro