By integrating the fundamental agricultural support policy of popularizing agricultural techniques into the e-commerce supply chain of agricultural products, this paper constructs a game model. The model analyzes the impact of this policy on the greenness of agricultural products, production and sales volume, and ecommerce service levels, thereby examining its incentive effects on farmers, e-commerce platforms, and consumers. The findings are as follows: First, the policy of popularizing agricultural techniques can enhance both the greenness and the production / sales volume of agricultural products while strengthening e-commerce services, thus promoting green agricultural production and sustainable development. Second, this policy simultaneously increases farmer income, e-commerce platform profits, and consumer welfare, which contributes to rural prosperity and incentivizes e-commerce platforms to further support the agricultural sector. Third, the policy yields the greatest increase in farmer income and the smallest increase in e-commerce platform profits, thereby enhancing overall social welfare while promoting greater equity in social distribution.By integrating the fundamental agricultural support policy of popularizing agricultural techniques into the e-commerce supply chain of agricultural products, this paper constructs a game model. The model analyzes the impact of this policy on the greenness of agricultural products, production and sales volume, and ecommerce service levels, thereby examining its incentive effects on farmers, e-commerce platforms, and consumers. The findings are as follows: First, the policy of popularizing agricultural techniques can enhance both the greenness and the production / sales volume of agricultural products while strengthening e-commerce services, thus promoting green agricultural production and sustainable development. Second, this policy simultaneously increases farmer income, e-commerce platform profits, and consumer welfare, which contributes to rural prosperity and incentivizes e-commerce platforms to further support the agricultural sector. Third, the policy yields the greatest increase in farmer income and the smallest increase in e-commerce platform profits, thereby enhancing overall social welfare while promoting greater equity in social distribution.