The model of accelerating seismic activity,which is set up on the basis of fracture theory and experiment of rock,stands on the solid ground of physics.Its use in analyzing and forecasting the future seismic activity is of great significance in practical application.In this paper,we analyzed and forecasted the seismic activity in East China region and seismic zone from Changjiang mid-downstream reach to south Yellow Sea by using the model.It is indicated that the present seismicity period will finish about in 2016,and earthquakes whose whole energy is corresponding to that of an earthquake with M_S7.7 will occur from now to 2016.It is also indicated that the value of characteristic parameter α=4,which characterizes the regional seismic activity in the model of accelerating seismic activity,is suitable to East China region and seismic zone from Changjiang mid-downstream reach to south Yellow Sea.