本文报道通过实验证实：中药汤剂常规法第二煎后的药渣仍有利用价值，并对煎煮次数与煎出量的关系进行了研究，同时对汤剂煎煮方法进行了三点改进，通过煎出物总量测定和抑菌实验，证明改进煎煮法能保证汤剂质量和药效，因此，具有较大的实用价值。 This article reports through experiments that the traditional Chinese medicine decoction is still worthy of the second decocted residue, and the relationship between the number of decoctions and the amount of decocting is studied. At the same time, three improvements have been made to the decoction method of decoction. Through the determination of total amount of frying substances and antibacterial experiments, it was proved that the improved decoction method can ensure the quality and efficacy of the decoction. Therefore, it has great practical value.