The relationship between Shennong and medicine was first seen in Huai Nan Zi Xiu Wu Xun: "Shennong first taught the people and tasted a hundred herbs. At that time, he encountered seventy poisons a day, so the doctor prospered. " When it comes to tasting herbs, medicines are popular with medicines. Later, it was discovered in the supplement to Historical Records. Biography of Huang San: "Shennong takes ochre as a whip, whips plants, and tastes herbs to get medicine", which not only respects Shennong as one of Huang San, but also is the founder of medicine. "Shiben" also said: "Shennong and medicine help others." It can be seen that Shennong not only tasted herbs to recognize medicine, but also sent medicine. In the Song Dynasty, Liu Shu synthesized the above theories. He said in Tongwaiji: "People have diseases, and the medicine stone is unknown. Emperor Yan began to taste vegetation, tasted seventy poisons a day, and turned them into gods, so he prescribed prescriptions to cure the diseases of the people, and the medical way was established. " Although no prescription book has been found in archaeology in recent years, the historical age and activity area of tasting herbs have been confirmed, which shows that it is correct for the ancients to trace back to Chongyuanyan Avenue with the saying that Shennong tasted herbs.