The difference between a bad king and a good king is of great significance to the social development at that time, but it is not absolute. Throughout the history of China, most emperors in the middle and late Ming Dynasty were incompetent, unable to see the current situation clearly and unable to lead the empire to great power. The appearance of a bad king is generally in the middle and late stages. A wise monarch is not only a person who promotes social development and makes a difference compared with a bad monarch,