The invention discloses a traditional Chinese medicine composition for treating chronic appendicitis. The traditional Chinese medicine composition comprises, by weight, 8-10 parts of rheum officinale, 5-6 parts of peach seed, 1-3 parts of white peony root, 5-6 parts of tree peony bark, 3-5 parts of coix seed, 2-4 parts of patrinia herb, 6-8 parts of pangolin, 3-4 parts of curcuma rhizome, 1-3 parts of caulis clematidis armandii, 5-8 parts of dandelion, 3-4 parts of hedyotis diffusa, 2-4 parts of corydalis tuber, 12-15 parts of honeysuckle flower, 20-25 parts of wax gourd seed, 5-6 parts of radix bupleuri, 3-4 parts of folium isatidis, 2-4 parts of cynanchum paniculatum, 2-3 parts of shiny cinquefoil root and 1-2 parts of olive nut. The traditional Chinese medicine composition is designed according to a traditional Chinese medicine differentiation theory. Through compatibility of medicines, the traditional Chinese medicine composition has effects of rectifying qi and promoting blood circulation, warming cold-damp, strengthening spleen and stomach and effectively treating chronic appendicitis, realizes simultaneous treatment of principal and subordinate symptoms, has no side effect and has clinical efficiency of 98.2%.