在完全竞争市场上,将服务产品价格当作随机变量模拟,提出用偏微分方程来描述服务产品的金融特性,并为买入卖出期权价格建立偏微分方程。通过建立整数线性规划计算不同期权执行价格产品的出售数量。最后通过数值算例证明此种定价方法比不考虑期权的定价方法能取得更高收益。该方法能有效解决合约市场中存在销售代理时服务产品销售企业面临的不确定问题。 In the perfectly competitive market, the price of service product is taken as a stochastic variable simulation. The partial differential equation is proposed to describe the financial characteristics of service products and the partial differential equation is established for the price of put option. By establishing integer linear programming to calculate the price of different options for the implementation of the sale of products. Finally, a numerical example is given to prove that such a pricing method can achieve higher returns than the pricing method without considering options. The method can effectively solve the uncertainties faced by service product sales enterprises when there are sales agents in the contract market.