The invention provides a preparation method of a traditional Chinese medicine lotion for treating bartholinitis caused by being addicted to roasted mutton, belonging to the technical field of preparation methods of traditional Chinese medicines. Western medicines are generally adopted to treat bartholinitis caused by being addicted to roasted mutton at present and have the defect of high toxic and side effects. The preparation method is characterized by taking European verbena herb, soda-apple night-shade herb, tartarian buckwheat root and rhizome, filliform cassytha herb, fig, bark of shrubalthea, cottomrose hibiscus, common lantana leaf, herba orostachyos, patience dock root, pubescent holly root, figwort root, barbated skullcup herb, Chinese lobelia herb, bunge corydalis herb, herba hyperici japonica, ardisia crenata sim, sowthistle tasselflower herb, weeping forsythia capsule, roughhaired holly root, tree peony root bark, honeysuckle stem, stringy stonecrop herb, phyllanthus urinaria linn, figwortflower picrorhiza rhizome, tea leaves, sticktight, common andrographis herb, Japanese white birch bark, brasenia schreberi, dayflower herb, rhamnus davurica and liquorice, soaking the above traditional Chinese medicines in water, then decocting the medicines with slow fire and filtering the decoction to remove dregs, thus obtaining the liquor, namely the traditional Chinese medicine lotion for treating bartholinitis caused by being addicted to roasted mutton. The preparation method has the advantages that the prepared traditional Chinese medicine lotion has low toxic and side effects, short course of treatment and high cure rate; the monarch, assistant, adjuvant and guiding medicines are just right.