The invention provides a quick-acting externally applied traditional Chinese medicine for treating rheumatoid bone diseases and a preparation method thereof, relating to traditional Chinese medicines and preparation methods. The traditional Chinese medicine comprises the following components: Chinese angelica, suberect spatholobus stem, caulis tinosporae sinensis, garden balsam stem, rhubarb, Szechuan lovage rhizome, doubleteeth pubescent angelica, slenderstyle acanthopanax bark, safflower, folium artemisiae argyi, common clubmoss herb, bark of oriental variegated coralbean, kadsura pepper stem, mulberry twig, giant typhonium rhizome, pricklyash peel, fresh ginger, incised notopterygium, twotooth achyranthes root, divaricate saposhnikovia root, fineleaf schizonepeta herb, herb of hornwort, pericarpium zanthoxyli, clematis root and root of largeleaf gentian. The specific preparation method comprises the three steps of pretreatment, crushing and cooking and then can achieve the aim of treatment through hot compress. The quick-acting externally applied traditional Chinese medicine for treating rheumatoid bone diseases and the preparation method thereof have the beneficial effects that the traditional Chinese medicine is reasonable in compatibility and low in cost, has obvious treatment effects on the rheumatoid bone diseases, such as hyperostosis, bone spur, synovitis, lumbar disc herniation and bone and joints, such as cervical vertebra and lumbar vertebra, takes effect quickly, is simple and convenient to use, has a cure rate of 95%, has an extremely low recurrence rate and a short course of treatment, and frees patients from pain.