中药饮片是中药材经过按中医药理论、中药炮制方法，经过加工炮制后的，可直接用于中医临床的中药。这个概念表明，中药材、中药饮片并没有绝对的界限，中药饮片包括了部分经产地加工的中药切片，原形药材饮片以及经过切制、炮炙的饮片。前两类管理上应视为中药材，只是根据中医药理论在配方、制剂时作饮片理解。
Chinese herbal medicine is a Chinese herbal medicine which can be directly applied to traditional Chinese medicine after being processed and processed according to Chinese medicine theory and traditional Chinese medicine processing method. The concept shows that there is no absolute boundary between Chinese herbal medicine and Chinese herbal medicine. The Chinese herbal decoction pieces include some Chinese traditional Chinese medicine slices, original herbal medicine slices, and the cut and fried slices of Chinese herbal medicine. The first two categories of management should be regarded as Chinese herbal medicines, but only according to the theory of Chinese medicine, when they are formulae and preparations, they should be understood.