A preparation method of traditional Chinese medical lotion for remedying headache type ecthyma belongs to the technical field of a preparation method of traditional Chinese medicine. At present, the headache type ecthyma is treated generally with antibiotics and sulfonamides, which have great toxic and side effects. According to the technical scheme, 39 traditional Chinese medicines including semen aesculi, green tangerine peel, clore, fructus akebiae, Chinese star anise, common jasminorange, coridius, jack bean, elecampane inula root, fructus toosendan, caesalpinia digyna, spicebush root, spikenard, ambergris, turmeric root tuber, dried leech, fructus polygoni orientalis, herb of humifuse euphorbia, rhizoma corydalis, pyritum, anomalous artemisia, safflower, azalea, sapanwood, gleditsia spine, commiphora myrrha, caulis spatholobi, olibanum, lycopus herb, herba selaginellae, acronychia, rhizoma polygoni paleacei, leonurus fruit, winged euonymus twig, curcuma, semen persicae, campsis flower, tobacco and liquorice are soaked in water and decocted by slow fire, and the prepared lotion is the traditional Chinese medical lotion for remedying headache type ecthyma. The preparation method provided by the invention has the advantages that the traditional Chinese medical lotion has fewer toxic and side effects, the treatment course is short, and the recovery rate is high. Moreover, adverse reactions of western medicine can also be avoided.