The invention discloses a dispatching automation primary and backup system data check system, and relates to a primary and backup system data check system. The traditional data check mode has the disadvantages of poor purposiveness, big data volume and low efficiency. The dispatching automation primary and backup system data check system comprises an intersystem measurement mapping module, a real-time data check client side module and a historical data acquisition service side module, wherein the intersystem measurement mapping module is used for carrying out mapping remote controlling and remote signaling between a local system and an opposite end system; the real-time data check client side module is used for reading a local intersystem measurement mapping table, sending a required opposite end system measurement request to the remote retrieval progress of the system, periodically invoking a synchronous interface to read a remote signaling remote controlling value in the remote retrieval progress of the system, and writing the remote signaling remote controlling value into the intersystem measurement mapping table; and the historical data acquisition service side module is used for receiving a measurement request sent from an opposite side system and returning historical data relevantly measured at certain moment. The technical scheme has the advantages of convenience and high speed in operation and intuitive comparison, the set sensitivity is revised, and the display of check results of different requirements can be realized, thereby being favorable for system management.