The earliest discovery and utilization of tea began with medicinal use. "Shennong tastes a hundred herbs and encounters seventy-two poisons every day. He made tea and solved it. " There is also a saying in Jin Zhanghua's Natural History that "drinking real tea makes people sleep less". Tao Hongjing's Miscellaneous Notes said that "this tea is intellectual man fit and boneless, and yesterday Dan Qiu Zi Huang Jun took it". In fact, there was a record of Dan Qiuzi drinking tea in the Han Dynasty earlier than this: Yuyao people went to the mountains to collect tea. I met a Taoist who led three green cows and led the flood to Waterfall Mountain. He said, "Give it to Dan Qiu Zi. Wen Zi loves to drink, and often thinks about the benefits. There is big tea in the mountains, so you can give it to each other and pray that your son will have a place to live another day. " Because of dedication. Later, he often let his family into the mountains and won great fame. Dan Qiu Zi was a "fairy" in Han Dynasty, the earliest Taoist figure in tea culture, and Yuyao Waterfall Mountain was a famous tea-producing mountain in history. Therefore, the records of Daming and Xianming are exactly the same. The "tea" and "tea" in these records are today's tea. What surprised us even more was that as early as the Jin Dynasty, when Guo Pu annotated Erya, he explained that (tea) trees were as small as gardenias, with leaves and burial places in winter, and the Shu people called them bitter tea. The so-called "Shu people" can be regarded as the earliest germination of the ancient Bashu tea drinking custom. And Hu Jushi in the Western Han Dynasty said in "Food Avoidance": "Bitter tea, long food feathers." All this shows that tea was used from the beginning and was associated with medicine.