Abstract: Whether the earthquake hazard can be predicted or not, and how are we to achieve efficacious prediction.In this paper, The author thinks that earthquake is a objective reality of nature world and the developing process of seismology, occurrence has inevitably a regularity.If its regularity is recognized and mastered, the prediction would be achieved.Strengthening research on seismic source is the basis to achieve earthquake hazard prediction.Correspondence between yardstick of prediction term and prediction method is good way to improve prediction effect.