The invention relates to a Chinese patent medicine ointment for treating radiodermatitis. The ointment consists of Baikal skullcap root, coptis, phellodendron, red sage root, lithospermum, notoginseng, borneol, lanolin, ethyl nipagin ester, vaseline and the like, wherein (1) according to weight percentage, 20 to 25 percent of Baikal skullcap root, 20 to 25 percent of coptis, 20 to 25 percent of phellodendron, 15 to 18 percent of red sage root and 15 to 18 percent of lithospermum are mixed, so as to extract liquid medicine by a water decocting method, and the liquid medicine is heated to concentrate into dense extractum with relative density between 1.22 and 1.26 (measured at a temperature between 55 and 65 DEG C); and (2) according to weight percentage, 42 to 55 percent of the dense extractum, 35 to 48 percent of vaseline, 2.5 to 3 percent of lanolin, 2.5 to 3 percent of notoginseng powder, 2.5 to 3 percent of borneol and 2.5 to 5 percent of ethyl nipagin ester are evenly mixed, separately packaged and prepared into the ointment. The ointment is a traditional Chinese medicine product, has the advantages of good treatment efficacies, small toxic and side effects, low price, easy acceptance by patients, and easy popularization and application.