The booming of second-hand goods has driven the rise of the C2C reverse logistics platforms. However, the trading difficulty of commodities and the residual value of goods in the C2C reverse logistics platform are rarely studied. In this paper, the commodity utility, the multiplying of the difficulty of commodity trading with the residual value of goods, is introduced. Based on the Amstrong’s bilateral market model, the pricing model of C2C reverse logistics platform in two kinds of markets are studied, i.e. the monopoly market and the duopoly competition market. The research shows that in a monopoly market the platforms increase in commodity utility does not necessarily increase the platforms profit. When the platform is in a duopoly market, there are two situations. First, when the utility of the two platforms has no difference in utility, the profit obtained by the platform is related to the externality coefficient of the network between the two groups. Second, when there is difference in the utility of the two platforms while there is no difference in commodity utility of the platforms and there is no difference in goods obtained by the seller and the buyer, the profit obtained by the platform increases monotonouslyin a certain range with the utility difference between the two platforms.