The invention discloses a plaster for treating scapulohumeral periarthritis, and a preparation method thereof. The plaster provided by the invention comprises forty 
traditional Chinese medicine components including radix astragali, 
angelica sinensis, white paeony root, 
cassia twig, radix 
curcuma, notopterygium root, common clubmoss 
herb, safflower, radix clematidis, 
angelica root, large gentian root, poria cocos, chuanxiong root, 
saposhnikovia root, trogopterus dung, etc. The plaster provided by the invention is convenient for preparation and use, is safe for clinic applications, can reach 
disease sites directly, has many absorption of effective components and good effectiveness of the medicines, has a significant 
curative effect, treats both the symptoms and root causes, and does not stimulate viscera. By compatibility of the medicines, a 
curative effect is increased; 
drug property is changed or alleviated; and 
toxicity and side effects of the medicines are reduced or eliminated. The 
traditional Chinese medicine plaster provided by the invention is specialized for treating the scapulohumeral periarthritis, and has relatively good effects for curing and alleviating symptoms of the scapulohumeral periarthritis. 162 cases are treated and a 
total efficiency reaches 97%. Besides, the plaster provided by the invention contains 
camphor and plum 
borneol, and can increase transdermal capability of corticosteroids by 8-10 times.