The decoction is called “the soup liquid” in the old days,and refers to a liquid preparation obtained by soaking medicinal materials or coarse powder particles with water and then decoction in an appropriate amount to remove the residue and extract the juice.Under the guidance of traditional Chinese medicine(TCM)technology,the decoction can be added or subtracted according to the syndrome,and its usage is flexible.The general preparation methods such as decoction first,followed by decocting,package decoction,single decoction,and melting by heat are very important to the clinical efficacy of TCM.Under the guidance of TCM theory,traditional decoctions are used as a reference to achieve the goal of modernization,standardization and industrialization.This paper starts with the preparation of traditional decoctions,combining the pre-treatment technology of medicinal materials in formula granules.Aiming at extraction technology for different medicinal properties,high-efficiency and energy-saving concentration technology,dry granulation technology and other modern preparation technologies,the similarities and differences between the 2 were compared,providing ideas for the future development of formula granules.