In the context of dual carbon, reducing carbon emissions and carbon pollution has become a necessary condition for clean production of enterprises. But in order to reduce environmental pollution, enterprises need to spend a lot of cost. These costs affect corporate earnings and future development, and how to effectively control environmental costs has become a key issue for high-quality development of enterprises. From the enterprise point of view, we can start from the following two key points. On the one hand, enterprises need to start from themselves to improve environmental risk awareness and control standards to control corporate environmental costs in the whole process. On the other hand, they need to form a joint force to control corporate environmental costs by means of PPP model, green trust, international financing and other ways.