The invention discloses a traditional Chinese medicinal composition for treating bladder cancer, belonging to the field of traditional Chinese medicine. The traditional Chinese medicinal composition is prepared from the following raw materials: Ligustrum lucidum fruit, Eclipta prostrata, Rhizoma Coptidis, Caulis Akebiae, Lygodium japonicum, talc, Semen Plantaginis, Poria cocos, Lasiosphaera Seu Calvatia, Flos Lonicerae, Oroxylum indicum, Coix lacryma-jobi seed, Benincasa hispida peel, white gourd pulp, Folium Pyrrosiae, Phyllostachys nigra leaf, Vaccaria segetalis, Panax ginseng, Astragalus membranaceus, Angelica sinensis, Rhizoma Atractylodis, Corydalis yanhusuo, Scutellaria barbata, Radix Curcumae, Salvia miltiorrhiza, Rhizoma Curcumae, Sparganium stoloniferum, Ziziphus jujuba and Radix Glycyrrhizae. The traditional Chinese medicinal composition disclosed by the invention has synergistic action, and has effects of clearing away heat, eliminating dampness, clearing away the damp-heat from bladder, promoting blood circulation, dispelling blood stasis, strengthening the body resistance, consolidating the constitution, and invigorating qi and blood. The traditional Chinese medicinal composition has the advantages of distinct therapeutic effect on bladder cancer, easily-accessible raw materials, low cost, convenience in administration, and no toxic and adverse side effects.