In order to developing debris flow science, the study on debris flow must be fitted to national economical construction. Forthermore, debris flow control should be take as a turning point which change economy-ecosystem in mountain area from vicious circle into well-circle and then cause debris flow control to be well coordinated with the development of society, economy and ecology environment. To bring about the goal, the forward positions of debris flow science, initiation theory and resistance law of debris flow,have to be broken through first.At first,some measurements to handle these problems have been put forward.