The invention discloses a traditional Chinese medicine tablet for treating rheumatism and a preparation method thereof. The traditional Chinese medicine tablet is composed of, by mass, 20-35 parts of radix clematidis, 7-19 parts of cocculus trilobus, 13-24 parts of nodus terebinthinae, 11-26 parts of paniculate swallowwort root, 5-19 parts of alangium platanifolium, 13-28 parts of harlequin glorybower leaf, 5-26 parts of kadsura pepper stem, 11-22 parts of aristolochia mollissima, 5-23 parts of elderberry, 13-26 parts of large-leaved gentian, 13-28 parts of pawpaw, 14-27 parts of geranium wilfordii, 7-26 parts of herba siegesbeckiae, 12-27 parts of herba lycopodii, 6-25 parts of garden balsam stem, 6-26 parts of ramulus mori, 11-28 parts of cortex acanthopanacis, 5-22 parts of parasitic loranthus, 10-26 parts of cortex erythrinae and 10-21 parts of liquorice. The traditional Chinese medicine tablet can promote treatment of rheumatism, and total treatment efficiency reaches more than 98%.