A preparation method of a traditional Chinese medicine lotion for treating blood stasis type cellulitis belongs to the technical field of traditional Chinese medicine preparation methods. Currently, antibiotics and sulfanilamide medicaments are generally used for the treatment of blood stasis type cellulitis, and have the disadvantage of great side effect. The technical scheme of the invention isthat the preparation method comprises the following steps: soaking the following 37 herbs of impatiens, leeches, fructus polygoni orientalis, humifuse euphorbia herb, rhizoma corydalis, native copper, artemisia anomala, safflower, azaleas, hematoxylon, Chinese honeylocust spine, myrrh, caulis spatholobi, frankincense, herba lycopi, selaginella, acronychia pedunculata, rhizoma polygoni paleacei, motherwort fruit, winged euonymus twig, turmeric, peach kernel, trumpet creeper, cloves, fiveleaf akebia fruit, star anise, murraya, aspongopus, sword bean, elecampane, toosendan fruit, mysorethorn, combined spicebush root, spikenard, ambergris, grubs and licorice in water, decocting with mild fire, filtering to remove residues so as to obtain the medicinal liquid which is the traditional Chinese medicine lotion for treating blood stasis type cellulitis. The advantages are that the prepared traditional Chinese medicine is simple in preparation, less in toxic and side effect, short in treatment course, and high in cure rate.