The invention discloses a medicinal composition for treating non-small cell lung cancer, and relates to the technical field of traditional Chinese medicines. The medicinal composition is prepared from the following active components in parts by weight: 10-15 parts of fructus schisandrae chinensis, 5-10 parts of cordyceps sinensis, 12-16 parts of Chinese angelica, 10-15 parts of radix astragali, 15-20 parts of panax pseudoginseng, 4-6 parts of calculus bovis, 4-6 parts of centipede, 1.5-2.5 parts of cornu cervi pantotrichum, 12-16 parts of radix codonopsis, 6-12 parts of lily and 6-12 parts ofradix platycodonis. After the model rat is subjected to gavage with the medicinal composition disclosed by the invention, the antagonism on the growth of transplanted tumor in nude mice of the human lung cancer A549 cell can be enhanced, thus indicating that the traditional Chinese medicinal composition disclosed by the invention has a very effective inhibiting effect on the growth of cancer cellof the non-small cell lung cancer molding rat.