The invention relates to a testing platform device for a province-district-county integrated scheduling system, and the device is characterized in that the device consists of an embedded central processor module, a communication interface module, a man-machine interaction module, a display module, a route module, a switching module and a longitudinal encryption module; the device can simulate a main station when a factory station cannot build connection with the main station, and carries out the information exchange, protocol analysis and data network simulation with the factory station; the device achieves the real-time simulation of the operation state of a grid, provides an onsite telecontrol debugging function, shortens the debugging time of the factory station, and speeds up the testing of the province-district-county integrated scheduling system.