Boiling Chinese medicine has requirements for decoction utensils, water, water volume, fire and method. Generally speaking, ceramic vessels and casserole pots are good for decocting, while stainless steel vessels are also used in modern times, avoiding the use of iron and copper vessels. The capacity of the decoction vessel should be slightly larger to facilitate the turning of the medicine and avoid the spillage of the medicine. Water to clean, fresh, no impurities as a principle, such as tap water, distilled water can be. The amount of water can depend on the amount of medicine, texture and decoction time, generally 3-5cm above the plane of the tablets is appropriate. Each dose of medicine is usually decocted 2 times, and there are also 3 times of decoction. The amount of water in the first decoction can be more, and the amount in the second and third decoctions can be slightly less. The amount of medicine obtained from each decoction is about 150mL. Generally speaking, there is a difference between “martial fire” and “civil fire”. Rapid fire decoction, so-called “martial fire”; slow fire decoction, so-called “cultural fire”. Routine first with the fire, after boiling that is changed to the fire. At the same time, according to the nature and flavor of the drug and the requirements of the decoction time, discretionary fire. Before decoction, the drug should be soaked for 20-30 minutes before decoction, so that the active ingredients can be easily decocted. Some medicines have special requirements such as first decoction, second decoction and packet decoction, etc. It is recommended to consult a medical practitioner before decoction. It is recommended to consult a medical professional before decoction.