Abstract: When the government provides subsidies for green home appliances,it studies the green supply chain decision-making of manufacturers and retailers in the process of production and sales of green home appliances.The game theory was used to construct the decision-making models of centralized,decentralized,low-price promotion and benefit sharing contract,and the influence of government subsidies on the price and green degree of household appliances under different decision-making situations was analyzed.The results show that:(1)Compared with the centralized decision,the retail price of green appliances under decentralized decision is higher,the greenness is lower,and the profit of supply chain is lower.(2)Low price promotion strategy and benefit sharing strategy can achieve supply chain coordination.(3)With the increase of subsidy,retail price,product greenness and supply chain profit all increase.The research conclusions were verified one by one through numerical examples,and the value ranges of low-price promotion strategy and benefit sharing contract parameters were given.