For a long time,studies on environmental taxes are limited in the field of point source pollution,and there are few researches on the effects and mechanism how environmental taxes affect especially agricultural non-point source pollution.This paper summarizes the existing literature on environmental taxes and the regulation of agricultural non-point source pollution,along with the clue of how environmental economic policies affect agricultural non-point source pollution.Besides,this paper recites on the current studies,so as to provide suggestions for future researches and reforms.