Abstract: Considering the importance of PSHA model in earthquakes forecasting, by using the catalog in the 200 years in China, we tried to improve the original PSHA model with combining seismic energy distribution model, and computed the probability of earthquakes in a specific area in China with time\|span T based on both the improved PSHA model and the original model. Finally the experimental results show that the improved model is more efficiency and reliable than the original one.