The invention discloses a traditional Chinese medicine patch as well as a preparation method and a purpose thereof, and relates to the field of traditional Chinese herbal medicine. The medicine-containing paste of the traditional Chinese medicine patch is prepared from the following raw material medicine in parts by weight: 5 to 10 parts of eucommia bark, 10 to 30 parts of radix paeoniae rubra, 10to 20 parts of radix angelicae sinensis, 10 to 30 parts of saffrons flowers, 10 to 30 parts of cicada slough, 10 to 50 parts of sward, 10 to 50 parts of radix et rhizoma rhei, 10 to 20 parts of radixaconiti feri, 10 to 40 parts of notopterygium roots and 10 to 50 parts of rhizoma drynariae. The traditional Chinese medicine patch overcomes the defects of use inconvenience, complicated ingredients, poor medicine effect and unobvious curative effect of traditional rheumatism medicine. Through the reasonable matching of eucommia bark, radix paeoniae rubra, radix angelicae sinensis, saffrons flowers, cicada slough, sward, radix et rhizoma rhei, radix aconiti feri, notopterygium roots and rhizoma drynariae, the obvious curative effect is achieved on female dysmenorrhea and rheumatism diseasessuch as hyperosteogeny, scapulohumeral periarthritis, rheumathritis, ischioneuralgia, soft tissue injury and lumbar muscle strain.