Abstract: The impact of supply loss ratio on the dynamic supply chain networks of fresh agricultural products is addressed. By means of the variational inequality with the supply loss ratio and the price resilience in it, a model of supply chain network equilibrium is constructed. Cases of various supply loss ratios and various price resilience are analyzed, by which the impact of supply loss ratio and price resilience on the supply chain network equilibrium are found out. With the increase of supply loss ratio and price resilience, the total profit of all the parties will decrease. It is implied that producers and retailers should minimize the supply loss ratio and price resilience to maximize the total profit.