The invention relates to a preparation method for a traditional Chinese medicine lotion for treatment of hypertension-type closed fractures,and belongs to the technical field of traditional Chinese medicine preparation methods. At present, treatment of hypertension-type closed fractures generally uses western medicines. A disadvantage of using western medicines is that certain side effects exist. The technical solution of the invention includes: taking radix achyranthis bidentatae, hematite, white silkworm, trillim tschonskii maxim, scorpio, cassia seed, oyster shell, puncturevine caltrop fruit, apocynum venetum, hawksbill carapace, mother-of-pearl, gambir plant, rauwolfia, earthworm, snake slough, cowrie shell, centipedec, dung beetle, hedge prinsepia nut, pummelo fruit, flos caryophyllata, fruit of fiverleaf akebia, fructus anisi stellati, common jasminorange, aspongopus, sword bean, elecampane inula root, szechwan chinaberry fruit, decapetalous caesalpinia, combined spicebush root, sandalwood, and liquorice root; soaking the above 32 traditional Chinese medicines in water; decocting by slow fire; and filtering to remove dregs. The left medicine liquid is the traditional Chinese medicine lotion for the treatment of hypertension-type closed fractures. The lotion has the advantages that the traditional Chinese medicine liquid is fewer in side effects, short in treatment courses, and high in cure rate.