This paper introduces the observations at Changii, Hebei Province and Wudu, Gansu Province geoelectric stations (△≤100km) for two major earthquakes (Tangshan earthquake on July 28, 1976 and Songpan earthquake on August 16, 1976). The results of short-term and imme diate precursors were carefully checked and compared with each other. We got a similar precursory phenomenon which was not contingency. The similarity suggests that the similar anomalous phenomenon is objective; the electrical method (apparent resistivlty) is a hopeful methodfor earthquake prediction.