A composition for treating tumors caused by pancreatic, stomach, breast, or liver cancer, leukemia, lung or liver metastasis, and/or arterial aneurysm. The composition comprises in various parts: turtle shell, radix ranunculi ternati, rhizoma dioscoreae bulbiferae, concha arcae, fructus ligustri lucidi, cordyceps sinensis, dwarf lilyturf tuber, Whim brownii, radix astragali, angelica sinensis, radix pseudostellariae, spina date seed, fruit-spike of common selfheal, pericarpium citri reticulatae, costustoot, cape jasmine fruit, radix scrophulariae, radix rehmanniae, rhizoma corydalis, safflower, turmeric root-tuber, cortex moutan, concha ostreae, poria cocoa, herba lysimachiae, the root of red-rooted salvia, isatis indigotica fort, honeysuckle, fructus forsythiae, cortex eucommiae, radix gentianae macrophyllae, radix paeoniae alba, subprostrate sophora, seman platycladi, snakegourd fruit, membrane of chicken gizzard, platycodon grandiflorum, and radix liquiritiae.