The correct method of decoction of Chinese medicine can not be generalized, and it has certain requirements for each step. 1. Vessel: Decoction of Chinese medicine should use casserole or enamel pot, its heat uniformity, good heat preservation, do not use iron, copper, aluminum and other utensils, so as to avoid chemical reaction with the drug, weakening the effect. 2. Water: put the drug into the pot, the amount of water is higher than about two centimeters appropriate, if the drug hard texture needs to be decocted for a long time, you can increase the amount of water, and vice versa, the texture of the loose can also be appropriate to reduce the amount of water. 3. Mode: The decoction of drugs can be made by first decoction, second decoction, packet decoction, another decoction, molten, etc., which should be made in accordance with the requirements indicated on the prescription of Chinese medicine. In addition, before decoction, the herbs should be soaked for half an hour to one hour, by adding water to soak the herbs can be softened, the tissue cells expand to restore their natural state, decoction is easy to leach the active ingredients.