The invention relates to a method for analyzing and filtering multi-satellite networking TT C data, belonging to the technical field of satellite networking communication, which solves the problem that when a plurality of satellites are networking, the TT C data of outer-domain satellites are mistakenly analyzed and processed by the special processing equipment corresponding to the node satelliteTT C data. The method includes configuring a special data processing equipment for each satellite, and grouping the satellites and corresponding processing equipment, the satellite identifiers of allsatellites in the same group and the unique spacecraft identifiers of the satellites supported by the same group being provided in the above-mentioned equipment; the computer system of the measurementand control center sends the measurement and control data to all the special processing equipments of the measurement and control data in the local area network; each special processing device of measurement and control data carries out secondary filtering treatment on the received measurement and control data, and analyzes and processes the legal data. The invention realizes the analysis and processing of the outer-domain satellite TT C data of the networking satellite by grouping and secondary filtering the ground TT C data special processing equipment.