This paper takes the manufacturing enterprises as the research object, and studies the Stackelberg game production decision-making model of manufacturers and remanufacturers under the constraints of carbon tax and carbon quota trading based on the goal of maximizing profits of enterprises when the remanufactured remanufacturers enter the market. Under the constraints of external carbon tax and carbon quota trading, manufacturers and remanufacturers are discussed How to make the optimal manufacturing / Remanufacturing Decision for manufacturers.