苏木为豆科植物苏木的心材。其功用：行血偿瘀，消肿止痛。广泛应用于跌打损伤，外伤肿痛，为一种临床常用药材。苏木的加工炮制方法，药典》九0版规定“锯成3cm的段，再劈成片或碾成粗粉”。｛山东省中药炮制规范》九0版规定，“锯成30mm段后，再镑片，劈成小碎块；或碾成粉； Su Mu is the heartwood of the legume hematoxylin. Its function: blood repayment, swelling and pain. Widely used in traumatic injury, traumatic swelling and pain, is a kind of clinically used medicinal materials. Su Mu’s processing methods, pharmacopoeia “90” stipulated that “saw into a 3cm segment, and then cut into pieces or crushed into coarse powder.” According to the 90th edition of the “Guidelines for the preparation of Chinese herbal medicines in Shandong Province”, “after sawing into 30mm segments, the pounds are broken into pieces, or crushed into powder;