中药五味有说明药物功效的作用，早在《内经》中就有相关记载，如《素问·脏气法时论》曰：“辛散，酸收，甘缓，苦坚，咸软”。然而，由于历史条件的限制，前人在应用中药五味来说明药物功效时，不可避免地掺杂有片面、偶然、牵强的因素，产生诸多不合理的现象，有的已失去指 The taste of traditional Chinese medicine has the effect of illustrating the efficacy of drugs. As early as in the “Internal Classics”, there are relevant records, such as “Su asked when the dirty air method”, said: “Sweet, acid, slow, bitter, salty.” However, due to the limitation of historical conditions, when the predecessors used Chinese herbs to describe the efficacy of drugs, they were inevitably doped with one-sided, accidental and far-fetched factors, resulting in many unreasonable phenomena, and some have lost their means.