本文将系统总结在高考试题经常涉及的证明不等式的若干方法。首先我们可以把证明不等式的问题在大的方向分为一个函数思想和两个函数思想,而对于一个函数思想,顾名思义就是在证明不等式时,我们可以将不等式中涉及的所有形式都挪到不等式的同一侧,把这个整体看成一个新的函数,并且在这种函数中经常涉及两类以上的基本初等函数,我们需要借助导数研究其单调性、极值,进而去证明不等式成立。而在处理这类问题的时候, This article summarizes the system is often involved in the entrance examination of several ways to prove inequalities. First of all, we can divide the problem of proving inequality in a large direction into one function thought and two function thoughts. For a function thought, as the name suggests, we can move all the forms involved in the inequality to the inequality On the same side, we regard this whole as a new function, and more than two types of basic elementary functions are often involved in this function. We need to study its monotonicity and extreme value by means of derivatives and prove that the inequality holds. In dealing with such issues,