| The shortage of water resources and the deterioration are the two severe probloms that China is facing. In order to really realize sewage reutilization and detoxication, the paper points out such problems of sewage irrigation in China as water quality bellow the national standards, mismanagements and lagged researches on the basis of the basic concepts and mechanisms of sewage irrigation and suggests that sewage irrigation need be practiced in accordance with actual conditions, rational planning, sewage pre-treatment, standardized management, in-depth and systematic researches. |