辅助函数法在大学《数学分析》中有着广泛的运用,利用此法可以证明微分中值定理(拉格朗日定理、罗尔定理、柯西定理).此文将转换视角,探讨辅助函数法的模式及在中等数学解题中的运用,以求抛砖引玉.1、辅助函数法的模式有关辅助函数的定义与模式,在一些文献里有所涉及,但描述得比较含糊,不太明晰与直观.下面笔者对其尝试性阐述,供参考. The auxiliary function method is widely used in the university “Mathematical Analysis” and can be used to prove the differential mean value theorem (Lagrangian theorem, Rolle theorem, Cauchy theorem) .This article will change the perspective and explore the auxiliary function method Mode and solve the problem in the middle of mathematics, in order to start a discussion .1, auxiliary function method of auxiliary function definition and mode, in some literature involved, but the description is rather vague, less clear and intuitive The following author tries to elaborate on it for reference.