The embodiment of the invention provides an intelligent terminal GOOSE resolution detection method and system. The method comprises the steps that multiple optical ports of a relay protection tester output a GOOSE message signal to a tested intelligent terminal according to the preset time; multiple straight jump ports of the intelligent terminal receive the GOOSE message signal outputted by the optical ports; the multiple straight jump ports of the intelligent terminal record the time when the GOOSE message signal is received; message information is generated by the intelligent terminal according to the time recorded by the multiple straight jump ports; a detection device receives the message information according to an industrial ethernet; and the detection result of GOOSE resolution of the intelligent terminal is generated by the detection device according to the message information and the preset time. An objective of detecting the tested intelligent terminal equipment in a comprehensive, detailed and profound way is realized so that the detection method has an important effect on mastering performance of the intelligent terminals of all manufacturers.