Product function configuration is important for customer satisfaction and enterprise profitability. In this paper, we attempt to apply the value engineering theory to optimize the configuration scheme. The concepts of customer perceived benefit, enterprise perceived cost and product function configuration value are discussed. The evaluation method of value elements based on utility theory is proposed, to quantify the function configuration value. The value model perfectly integrates the interests of the customer and the enterprise. The product function configuration optimization model is established and used to optimize an automatic transmission product configuration scheme. This optimization model based on value analysis can realize the game equilibrium between the customer and the enterprise, which attaches importance to the subjective feelings of them.