The invention discloses a hot compress medicament and a preparing method thereof, and belongs to the technical field of traditional Chinese medicine preparations. The medicament is prepared from cassia twig, divaricate saposhnikovia root, ephedra, peach seed, safflower, ground beetle, Chinese angelica, acanthopanax root bark, tall gastrodia tuber, radix achyranthis bidentatae, common floweringqince fruit, malaytea scurfpea fruit, rhizoma corydalis, raw common monkshood mother root, raw kusnezoff monkshood root, fortune's drynaria rhizome, osteon myospalacem baileyi, debark peony root, ilex pubescens, oblongleaf lopseed, common clubmoss herb, suberect spatholobus stem, Chinese taxillus herb, cibot rhizome, eucommia bark, himalayan teasel root, Chinese clematis root, frankincense, myrrh, incised notopterygium rhizome and root, doubleteeth pubescent angelica root, cochinchina momordica seed, manchurian wildginger, centipedes and coix seed. The raw materials are prepared according to a ratio, fully mixed, added into a crusher and crushed, and then the crushed raw materials are sieved with a sieve having a size of 100-120 meshes to obtain medicine powder. The medicament can effectively treat pain in waist and lower extremities, production of desired effects is rapid and relapse is not liable after cure.