The invention provides a traditional Chinese medicine for treating lung cancers. The traditional Chinese medicine comprises the following active ingredients in parts by weight: 100-150 parts of Chinese angelica, 100-150 parts of Chinese gentian, 10-15 parts of amur corktree bark, 10-20 parts of cape jasmine fruit, 10-20 parts of baical skullcap root, 3-8 parts of aloes, 3-8 parts of natural indigo, 3-8 parts of rhubarb, 7-12 parts of costustoot, 3-8 parts of amur corktree bark, 3-8 parts of radix codonopsis, 2-6 parts of red paeony root, 1-5 parts of figwort root, 2-6 parts of coastal glehnia root, 1-5 parts of dwarf lilyturf tuber, 3-8 parts of common anemarrhena rhizome, 3-8 parts of stem of noble dendrobium, 1-4 parts of fresh root of woods greenstar and 1-5 parts of fresh sessile stemona root. Compared with the prior art, the traditional Chinese medicine has good anticancer activity and can be used as an anticancer medicine. The traditional Chinese medicine composition is simple to prepare, is basically nontoxic, is accessible in raw materials, is suitable for mass use and has a good application prospect.