The paper analyses the characters of soil and water loss in Zhujiang watershed at first,Based on the summary of the experiences and lessons in the comprehensive harness of watershed in many years,it is raised that while the expriment area of comprehensive harness for small watershed is conducted well the active harnessing in large area should be underlined,At last it is suggested to solve the key problems in six aspects be the focal point for the soil and water conservation work to be done well.