Abstract: The agricultural products sold on the e-commerce platform can be roughly divided into two categories, one is non-exchangeable agricultural products, and the other is exchangeable agricultural products. These two kinds of products have their own different characteristics in the game theory. In this paper, the game analysis of the two types of agricultural products is conductedby using the bivalent car model and bivalent car model with refund guarantee. The seller who sold non-exchangeable agricultural products tends to provide inferior products at high prices; the seller who sold exchangeable agricultural products due to the perfect after-sale mechanism, the market will be the perfect, which can be described by the theory of Bayesian equilibrium. Based on this, the article puts forward the corresponding countermeasures from perfecting the after-sales commitment, strengthening the market supervision and improving product quality.