Diabetes mellitus belongs to the category of Chinese medicine thirst disease, the treatment needs dialectical treatment, divided into the upper elimination of lung heat and fluid injury (heat in the lungs, continuous depletion of human body fluid), the middle elimination of gastric heat and blazing evidence, qi and yin deficiency, the lower elimination of deficiency of kidney yin and yin and yang deficiency evidence. The clinical manifestations of Lung Heat and Fluid Injury (heat in the lungs, continuously depleting the body fluid) syndrome are thirst, dryness of the mouth with excessive drinking, dry throat, frequent urination, irritable heat (irritable and sultry) with excessive sweating, etc., and the representative formula is the Thirst Elimination Formula. Clinical manifestations of the syndrome of blazing stomach heat are thirst, excessive urination, frequent eating and easy to starve, emaciation, etc. The representative formula is Jade Maiden Decoction. Clinical manifestations of deficiency of qi and yin include lack of spirit, reduced diet, thirst, body thinness and weakness of limbs, etc. The representative formula is Seven-flavored Atractylodes Powder. Clinical manifestations of deficiency of kidney yin include frequent urination and excessive urination, weakness of waist and knees, dizziness, tinnitus, dry skin, dry mouth and lips, etc. This formula is represented by Six-flavored Digoxigenin Pill. Clinical manifestations of deficiency of yin and yang include frequent urination or even drinking and urinating, emaciated face, soreness and weakness of waist and knees, lack of warmth in the limbs, fear of cold and cold limbs (fear of cold, cold limbs), etc. The representative formula is Jin Gui Kidney qi Pill. The adverse reactions and contraindications of the above Chinese medicines are not clear, self-medication should be avoided, and it is recommended to go to a formal institution to avoid delaying the condition.