Abstract:Based on the spillover effect and binding effect of complementary products, the paper constructs a multi-stage supply chain pricing and green decision-making model based on the spillover effect and binding effect of complementary products green innovation, considering whether or not the complementary supplier green innovation, the retailer's green marketing and sales strategy. Through model solving and numerical experiments, it is found that when the binding effect of complementary products is large, the optimal strategy of complementary suppliers is green manufacturing, while the retailer's green marketing and bundle sales strategies are related to the optimal selection and binding effect of complementary suppliers; The green manufacturing and investment of other members in the supply chain will promote supplier a to improve the level of green manufacturing, and the retailer's bundle sales will also promote the green degree of the products; In addition, the spillover effect of green innovation of complementary products will also affect the profit of supply chain members and the whole.