The invention relates to a plaster for expelling wind by vipers, which is a drug for treating various osteoarthropathies caused by rheumatism and overcomes the defects of other methods. The plaster is prepared by the following traditional Chinese medicine materials with weight proportion according to certain technique: fructus chaenomelis, clematis chinensis, cortex periplocae, common clubmoss herb, safflower, centipede, parasitism, cassia twig, obscured homalomena rhizome, paniculate swallowwort root, mulberry twig, sappan wood, kadsura pepper stem, notopterygium root, akebia stem, hiraute shiny bugleweed herb, peach seed, long-noded pit viper, whole worm, garter snake, jiapian, panax pseudoginseng, dragon's blood, tortoise plastron, nux vomica, Chinese angelica, ground beetle, earthworm, garden balsam stem, common monkshood mother root, kusnezoff monkshood root, eucommia bark, rhizoma cibotii, rhizoma corydalis, sesame oil and yellow lead.