中药饮片的含义,有“广义”和“狭义”之分。“广义”者泛指经依法炮制后供配方用的中药之统称。而“狭义”者则仅指将净选后的药材切成各种类型的“片子”称为饮片。本文试就狭义之“中药饮片”,讨论其厚度与煎出物总量的关系。饮片具有“细而不粉”的特点,既有利于有效成分的煎出, The meaning of Chinese Herbal Pieces is divided into “generalized” and “narrow sense.” The term “generalized” refers broadly to the collective name of traditional Chinese medicines used for formulating after being concocted by law. The “narrow sense” refers only to cutting the selected medicines into various types of “films” called decoction pieces. This article attempts to narrow the meaning of “Chinese Herbal Pieces” and discusses the relationship between its thickness and the total amount of fried material. Decoction pieces have the characteristics of “fine but not powder”, which is beneficial to the frying of active ingredients.