The invention relates to a medicament for treating lung cancer. Tortoise plastron, turtle shell, ginseng, radix codonopsitis, radix pseudostellariae, pilose antler, root of rehmannia, dioscoreae opposite thumb, angelica, tuckahoe, tokay, cortex moutan, red paeony root, gardenia, rhizoma anemarrhenae, phellodendron amurense, figwort, concocted pangolin, alisma, Chinese eaglewood, radix astragali, cordyceps, pepperweed seed and Szechuan-fritillary bulb are evenly mixed and crushed into fine powder of 100 to 120 meshes; and the fine powder is pressed into tablets. The medicament has the advantages of nourishing kidney-Yin, warming kidney-Yang, benefitting vigor, clearing the lung and moistening dryness, unchoking mechanism of Qi, nourishing the blood and clearing Ying heat, breaking obstruction and relieving tumor, and clearing away heat and toxic material, applies cold and heat, combines tonification and purgation, and can enhance autoimmune function of human body, activate immune cells, promote nutrient recovery of tissues and cells, relieve and alleviate clinical symptoms, improve life quality of patients, and prolong life of the patients.