An embodiment of the utility model provides a system for detecting resolution of an intelligent terminal GOOSE, which comprises a relay protection tester, a detected intelligent terminal and a detecting device, wherein the relay protection tester is connected with the detected intelligent terminal through an optical fiber. The detected intelligent terminal is connected with the detecting device through an industrial Ethernet. The relay protection tester comprises a plurality of optical ports which are used for outputting a GOOSE message signal to the detected intelligent terminal at preset time. The intelligent terminal comprises a plurality of direct jumping ports. The direct jumping ports are used for receiving the GOOSE message signal which is output from the optical ports, recording the time when the GOOSE message signal is received and outputting the message information which corresponds with the time. The system provided by the utility model realizes comprehensive, detailed and thorough detection for the detected intelligent terminal and performs an important function for mastering the performance of intelligent terminals manufactured by different manufacturers.