Abstract: Li yizhi is the pioneer who led traditional Chinese river control into modern science and technology. Throughout the history of water conservancy in modern China, he made great effort to inherit and develop traditional Chinese water control theory as well as to introduce and spread advanced water conservancy science and technology from western countries. He acknowledged the role of traditional Chinese levee, put the view of “academic embankment”; attached importance to the use of levee in river regulation; it functions as an extension of levee. He emphasized that the use of plants in dike consolidation and beach protection should be avoid its soil loosen demerit and carried forward its merit in silting process. Moreover, Li also hoped to improve Chinese levee construction and management in an all-round way, and strengthen its basic scientific research, so that there could be an integration levee construction which combines the use of flood prevention, river regulation, irrigation and transportation.