The invention relates to a traditional Chinese medicine composition for treating a colon cancer. The traditional Chinese medicine composition for treating the colon cancer is prepared from, by weight, 10 parts of valvate actinidia roots, 12 parts of Elaeagnus umbellala Thunb, 15 parts of hawthorn roots, 12 parts of grape roots, 12 parts of sargentgloryvine stems, 15 parts of auriculate swallowwort stems and leaves, 10 parts of a spreading hedyotis herb, 12 parts of a whorlleaf stonecrop herb, 10 parts of Chinese actinidia roots, 10 parts of a lindley butterflybush herb, 12 parts of semen plantaginis, 10 parts of longpeduncle kadsura roots, 12 parts of lignum aquilariae resinatum, 15 parts of lophatherum gracile, 12 parts of pseudo-ginsengs, 15 parts of giant knotweeds, 10 parts of white atractylodes rhizomes, 10 parts of radix semiaquilegiae, 12 parts of Szechwan lovage rhizomes, 10 parts of salvia miltiorrhiza, 10 parts of folium isatidis, 10 parts of a barbed skullcap herb, 8 parts of ardisia maculosa Mez, 12 parts of lobelia chinensis, 10 parts of a flabellate hemipilia herb, 12 parts of paris polyphylla, 12 parts of tylophora ovata, 10 parts of lance asiabell roots and 10 parts of circium japonicum. The medicines of the traditional Chinese medicine composition have the effects of invigorating blood circulation, softening hard mass, eliminating phlegm, removing stasis, nourishing yin and blood, invigorating spleen to remove dampness, detoxifying and resisting to cancers, and the traditional Chinese medicine composition is remarkable in colon cancer treating effect, high in effective rate and free of toxic and side effects, can be directly used for treating the effective rate and can be also used for postoperative adjunctive treatment of the colon cancer.