Liu Zongyuan was a writer and philosopher in Tang Dynasty. His literary achievements occupied an important position in the history of Tang Dynasty literature. His poems mainly described nature and reflected society. His style was fresh and natural, simple, sincere and full of emotion. Liu Zongyuan's representative works include "Snake Catcher,""Teacher,""Climbing the Tower of Liuzhou" and so on. Among them, The Snake Catcher was one of his representative works. From the perspective of a snake hunter, it revealed the greed and cruelty of human nature, and showed his reverence and concern for life and nature. Liu Zongyuan's prose works were also very famous, including "An Early Journey to Shangshan" and "Reminiscence of the Past at the Mouth of Jiande River". His prose style is concise and bright, and he is good at using figurative metaphor and parallel techniques to give people a vivid picture and deep thoughts. In addition, Liu Zongyuan was also one of the famous philosophers of the Tang Dynasty. His philosophical thoughts had an important impact on the development of philosophy in later generations. The core of his philosophy was "honesty", which emphasized the sincerity and kindness between people and opposed hypocrisy and fraud.