The invention relates to an automatic acceptance device for monitoring information of a transformer substation and an acceptance method thereof. The device comprises a master station adaptation module, a telemechanical adaptation module, a simulation master station module, a man-machine interaction module and an automatic acceptance report generation module. The method comprises the following steps of: connecting the automatic acceptance device of monitoring information of a transformer substation into a transformer substation system, constructing an intelligent acceptance system of the monitoring information based on a D5000 platform; when a channel link is not established, entering a simulation master station working mode to simulate the functions of the master station to regulate and measure a transformer substation end and a dispatching master station; and after the channel link is established, employing the intelligent acceptance system of the monitoring information of the transformer substation to achieve the full-automatic formal joint debugging of the master station and a substation. The design is reasonable, and the problems of long transformer substation information acceptance time, more occupied personnel, high labor consumption, communication channel limitation and imperfect acceptance mode are solved.