In order to study the impact of enterprise cost sharing and government subsidies on the green effort level, pricing and profit of green supply chain members, considering a green supply chain consisting of a manufacturer and a retailer, four models were established: no cost sharing and no government subsidy(NN), cost sharing but no government subsidy(CN), cost sharing and government subsidy manufacturer(CM) and cost sharing and government subsidy retailer(CB). The Stackelberg game was used to solve the problem, and calculation results were analyzed. The research shows that the manufacturer’s profit is positively correlated with the green R&D cost sharing ratio, and the green marketing cost sharing ratio and the government subsidy coefficient increase first and then decrease. The retailer’s profit is negatively correlated with the proportion of green R&D cost sharing and the proportion of green marketing cost sharing, and it increases first and then decreases with the government’s subsidy coefficient. Finally, based on the research conclusions, relevant suggestions are put forward to provide decision-making ideas for green supply chain cost sharing and government subsidy business.