Two common empirical estimate methods, PAN Jiazheng method and IWHR empirical formula method, were used to calculate the height of reservoir bank landslide surge of Wu River. By comparing the results from two estimate methods, it is found that the height of surge calculated by IWHR empirical formula method is far less than that of PAN Jiazheng method. It is suggested that Pan Jiazheng method should be used as the main empirical method in the estimation of landslide while the IWHR empirical formula method as an auxiliary method. By comparing the results of surge height before pressing foot at the toe of slope and after, it is indicated that height of surge decreased obviously after pressing foot at the toe of slope. The method of pressing foot at the toe of slope can prevent the disaster of reservoir bank landslide surge.