The invention discloses a traditional Chinese medicine for treating scapulohumeral periarthritis. The traditional Chinese medicine is prepared from the following medicinal materials by weight: 10g of notoperygium root, 10g of pubescent angelica root, 10g of large-leaf gentian root, 10g of futokadsura stems, 12g of angelica, 10g of chuanxiong rhizome, 10g of mulberry twigs, 10g of costus root, 6g of licorice roots, 10g of herba ephedrae, 10g of centella asiatica, 5g of entada phaseoloides, 8g of fomes officinalis ames and 5g of ipomoea cairica. The preparation method comprises the steps of weighing the medicinal materials, placing the medicinal materials in a vessel, adding water, of which the weight is 8 times that of the medicinal materials, decocting for 1.5 hours, and filtrating, so as to obtain a filtrate and filtrated residue; adding water, of which the weight is 6 times that of the filtrated residue, into the filtrated residue, decocting for 1 hour, and filtrating, so as to obtain a filtrate and filtrated residue; combining the filtrates, concentrating, drying and filling into capsule shells. Proved by clinical trials, through selecting appropriate medicinal materials and proportioning ratio thereof, the traditional Chinese medicine achieves a remarkable effect on the treatment of scapulohumeral periarthritis, is safe and is free from toxic and side effects.