Maintaining and improving the ecological environment is a joint effort of all countries in the world, and the environmental public interest litigation system plays an important role in it. Starting from the concept and characteristics of environmental public interest civil litigation, this paper introduces the particularity of environmental public interest civil litigation subjects, and sorts out the existing types of environmental public interest civil litigation plaintiffs in China. Next, through the analysis of the current legislative status of the plaintiff subject system in China, the existing problems in China are put forward, and suggestions for improvement are put forward on the basis of drawing on the experience of foreign systems.