It is said that copper can be used as a mirror and dressed appropriately; Taking history as a mirror, we can know the rise and fall. Typical four classic novels, when you open a book, the first thing you know is that the author's literary talent is like a mountain. In Romance of the Three Kingdoms, Guan Yunchang was chivalrous and loyal, but his negligence in guarding Jingzhou was thought-provoking. The intellectual contest between the famous Kong Ming and Zhong Da is really amazing, just like baptizing the brain; A generation of lean Cao Mengde and hero Liu Xuande were better at making wine in their childhood. Their thoughts are worth understanding, and their political talents are worth learning. History can be said to be a combination of science, humanities and philosophy, studying the past and guiding the future. After constant supplement, combined with the contrast and collision of western history, the conclusion is drawn. It gives us theoretical support, on the other hand, it also shows how to do right and straight. The most important thing in history is to educate us, find our own shortcomings from the royal family members of past dynasties, learn to make a comprehensive analysis when facing problems, and make reasonable decisions after careful consideration. Nowadays, many people don't want to delve into history, feel bored and useless. History teaching is not handy, but difficult. In the process of studying history, we will broaden our horizons, go deeper, have a basic understanding of human reproduction from the beginning to the present, and know the ins and outs clearly. Learning history can be wise, and history educates our hearts. It is not superficial, but should be pondered and pondered. I hope that everyone will have a correct attitude towards learning, study history seriously, and receive historical education, so that their minds will become transparent and their brains will become wise.