The invention discloses an intelligent substation pressure transmitter secondary automatic phase tester comprising an operation panel and a box body. The operation panel is mounted on the box body. The operation panel is equipped with two groups of wiring jacks, a change-over switch and at least two voltmeters. The box body is equipped with a relay inside. The two groups of wiring jacks are each composed of a phase-A jack, a phase-B jack, a phase-C jack and a neutral wire jack. The output ends of the wiring jacks are electrically connected with the input end of the relay; the output end of the relay is electrically connected with the input ends of the voltmeters, and the control end of the relay is electrically connected with the change-over switch. With the intelligent substation pressure transmitter secondary automatic phase tester of the invention, all measurement functions during secondary phase test of two groups of pressure transmitters can be achieved, the problem facing existing intelligent substation pressure transmitter secondary phase test is solved, a large amount of field measurement is reduced, the work efficiency is improved, human error is reduced, and the safety performance is improved.