Diabetes mellitus is equivalent to thirst in traditional Chinese medicine, which is treated with medication based on dietary regimen and proper exercise. Commonly used formulas include Thirst Formula, Jade Maiden Decoction, Pulse Drink with Seven-flavored Atractylodis Macrocephalae, and Six-flavored Digoxigenin Pill. Pre-diabetes diet is very important, need to take diabetic diet, and combined with exercise therapy. The common types of pre-diabetes include lung heat and fluid injury (heat in the lungs that continuously depletes the body’s fluid), stomach heat, deficiency of qi and yin (deficiency of both qi and yin), and deficiency of kidney yin. Lung heat and fluid injury with thirst and excessive drinking and urination, dry mouth and throat as the main symptom, the treatment is to clear heat and moisten the lungs (to remove the heat evil in order to moisturize the lungs), and can be treated with the Thirst Elimination Formula. Stomach heat is blazing with dry mouth and thirst, easy to eat and hunger, dry stools as the main symptoms, the treatment is to clear the stomach and diarrhea (remove the stomach fire), can use the Jade Maiden Decoction for treatment. Deficiency of qi and yin can be seen in thirst and excessive drinking, shortness of breath and fatigue, nausea (lack of appetite, reduced food intake), less food, etc. The treatment is to strengthen the spleen and nourish qi and yin (replenish qi and yin fluids), which can be treated by combining Sheng Wei Yuan and Qifeng Bai Zhu San with additions and subtractions. Kidney yin deficiency can be manifested by lumbar and knee soreness (a feeling of soreness and weakness in the waist and knees), frequent urination, hot flashes (a burst of heat), night sweating (abnormal sweating after going to sleep, but sweating stops after waking up), and five heartburns and heat (heat in the hearts of the hands and feet, and self-consciousness of being irritated by heat in the chest and the heart), etc. The treatment is to nourish kidney yin and can be used to supplement the formula of Liouweidihuangwan (Six-flavored Di Huang Pill). If there is any discomfort, it is recommended to consult a doctor in time, do not take medication without authorization, you need to use medication under the guidance of a doctor.