Gongcha is called Shencha by Tujia people. This plant contains a natural plant essence, which was first discovered in Xizhou, western Hunan. According to historical records, as early as the 18th year of Ming Dynasty (A.D. 1385), soldiers in the war between Zhu Yuanzhang and the marquis of Qin used tribute tea to heal their wounds, which was called "Tujia tea". For thousands of years, Tujia people have been drinking it all the year round to keep fit and prolong life. Gongcha, also known as "Ampelopsis grossedentata", is a perennial vine, which can be used for both medicine and drinking. It has the taste and medicinal function of tea, and can adjust renal function if drunk frequently, and has a good preventive effect on cardiovascular and cerebrovascular diseases, rheumatism and rheumatoid diseases. Dihydroflavonol is a kind of wild tribute tea, which has the functions of anti-hypertension, relieving cough, eliminating phlegm, reducing blood lipid and protecting liver. Tribute tea is "vine", which plays the role of hoarfrost, and the drinking effect has obvious health care and treatment effects. Historically, it was called "rattan tea", "white tea", "divine tea" and "tribute tea". The habit of drinking tribute tea has existed since ancient times in the Ming Dynasty, which can be traced back to the time when Shennong tasted a hundred herbs in ancient times, with a history of more than 6,000 years. Because of the efficacy of tribute tea, the toast king ordered that this kind of tea should not be spread abroad to pay tribute to the toast king, nor should it be bought or sold, which violated the payment of money in hell, so people later called strawberry tea "toast tribute tea"