The invention discloses a preparation method for traditional Chinese medicine lotion for treating painful closed fracture and belongs to the technical field of traditional Chinese medicine preparation methods. The painful closed fracture is treated by adopting Western medicines in general at present, but a certain side effect can be generated. The technical scheme disclosed by the invention is that the preparation method comprises the following steps of: fetching the following thirty-two traditional Chinese medicines: safflower carthamus, rhizoma corydalis, sargentgloryvine stem, Salvia miltiorrhiza, fruit of princesplume ladysthumb, euphorbia humifusa, camellia, herba cepbalanoplosis segeti, osbeckia chinensis, folium artemisiae argyi, cactus, hairyvein agrimony, rhizoma bletillae, humusflava usta, crinis ustus, rumex japonicas, marmor serpentinatum, Boehmeria niveaGaud, Rubia tinctorum Madder root, common sage herb, flower of hollyhock, eclipta, Flos rosae rugosae, tobacco, pericarpium citri reticulatae viride, Syzygium aromaticum, fiveleaf akebia fruit, fructus anisi stellate, kamuning, Artemisia anomala, native copper and liquorice; soaking the thirty-two traditional Chinese medicines in water; then, decocting on a slow fire; filtering to remove dregs from a decocted liquid medicine to obtain the traditional Chinese medicine lotion for treating the painful closed fracture. The traditional Chinese medicine lotion for treating the painful closed fracture has the advantages of small toxic and side effects, short course of treatment and high cure rate.