The invention discloses a method of automatically generating a power device monitoring information table. With the help of a standard data source end maintenance rule, a monitoring signal naming rule, and a signal type, number and acquisition agreement rule for different device types and wiring modes, a monitoring signal analysis expert database based on forward reasoning is built, each monitoring information access expert decision making database is built for each manufactor, each device type and each wiring mode, storage and association of power device monitoring information points are realized, and with the help of the expert decision making database, with a device ID as a radiation source, a substation three-remote information table and a final monitoring information table are generated automatically. Limitation on monitoring information compilation and auditor professional background and acquisition rule understanding deviation are solved, problems that monitoring information between different substrates is hard to standardize and unify, and repeated auditing reduces working efficiency are solved, fusion of primary equipment, protection, automation, communication, and direct current knowledge is realized, and correct and standard monitoring information acquisition can be ensured.