Lhasa Northern Tibetan Medicine is one of the main schools of Tibetan medicine. The "- Refining Method" and "Renqing Changjue Compatibility Technique" are unique drug processing techniques. The "- Refining Method" of Tibetan medicine is referred to as "- Processing" or "Zuozhu Qinmo". The Tibetan people call "Zuozhu Qinmo" the treasure of Tibetan medicine. It is the king of medicine "Zota" that is non-toxic and has a unique curative effect after the highly toxic - is processed by famous Tibetan doctors of all generations through complex and special processing. As an important processing method of Tibetan medicinal materials and the only essence of Tibetan medicine practice, Tibetan medical scholars of all generations have attached great importance to the practice and inheritance of this technology for thousands of years, and have passed it down from generation to generation, so that this technology has been carried forward to this day. The practice method of - processing was first recorded in the "Four Medical Classics" compiled by Yutuo Ningma Yundan Gongbu in the 8th century AD, and was explained in detail in the formula of the precious medicine "Renqing Changjue" pills. At the end of the 13th century, the great saint Ugyenpa Rinchenbei successfully carried out the entire practical operation of "Zota" such as hot and cold treatment and detoxification, and compiled works such as "Zota Processing", creating a complete practical operation of Tibetan medicine "Zota Processing" system, and made an immeasurable contribution to the popularization and promotion of "Zota Processing". Later, through the continuous practice and inheritance of famous Tibetan medicine scientists such as the sage Karmapa Rangjung Dorje, Sukhanenni Dorje, and Gongzhu Yundan Gyatso, the essence of this Tibetan medicine culture has been passed down from generation to generation and continues to protect human health. "Zota" after Zota washing and processing is an indispensable and important raw material for the preparation of precious Tibetan finished medicines. It has a long history of use in Tibetan medicine. After nearly two thousand years of clinical practice verification, it has a wide range of applications and a large amount of use. It is the best among Tibetan medicines, and has the effects of prolonging life, strengthening the body, reducing toxicity and increasing efficacy. Tibetan medicine Renqing Changjue compatibility technique This product was formulated in the 8th century AD and was first recorded in the classic Tibetan medicine masterpiece "Four Medical Classics". It is based on the principles of Tibetan medicine, and is made of natural, precious and rare Tibetan medicinal materials grown in the special ecological environment of the roof of the world, and refined by combining modern science with traditional techniques. After more than a thousand years of clinical practice, it has been proven that this product has unique therapeutic effects on chronic gastritis, gastric ulcer, chronic atrophic gastritis, liver and gallbladder diseases. It has been used to this day and is well-known at home and abroad for its unique efficacy. It has been highly praised by medical experts and patients at home and abroad. This recipe is made up of more than 120 kinds of natural animals, minerals and plants unique to Tibet. More than ten Tibetan medicine companies across the country are producing and selling it. Most of the medicinal resources have been damaged to varying degrees, and some medicines have experienced population decline or even face extinction. For this reason, starting from the compatibility and technique of Tibetan medicine "Renqing Changjue", it is crucial to protect and recycle some endangered medicines in the compatibility of Renqing Changjue as soon as possible.