The invention discloses a substation operation skill training auxiliary device. The substation operation skill training auxiliary device comprises an operation screen; the front screen wall of the operation screen is provided with a power supply network composed of a plurality of insertion blocks; the rear screen wall of the operation screen is provided with a signal acquisition module and a signal output module which are electrically connected with corresponding insertion blocks; the substation operation skill training auxiliary device further comprises a server which is electrically connected with the output end of the signal acquisition module and the input end of the signal output module; the communication end of the server is connected with a data bus; and the data bus is correspondingly and electrically connected with a five-prevention workstation, a monitoring workstation and an evaluation workstation. With the substation operation skill training auxiliary device of the invention adopted, functions such as power skill training, assessment and evaluation functions can be realized; the standardability and logicality of each step of operation can be recorded, researched and judged; five-prevention operation skills can be improved; cheating problems caused by indicative circuit diagrams, texts and cooperation devices can be fundamentally eliminated; training efficiency is high; once learners learn skills, they can use the skills, so that a training effect enabling the learners to work directly can be realized; training costs can be saved; the safety of equipment and people can be improved; and the operation of the device is simple.