The invention provides a medicine for treating femoral head necrosis and a method for preparing the same. The medicine is a pill preparation prepared from the following Chinese herbal medicine raw materials in weight portion ratio: epimeddium, deerhorn glue, achyranthes root, large-leaf gentian root, honeysuckle, lilyturf root, red peony root, root of red salvia, poria, naze, capsule of weeping forsythia, earthworm, dried body of scorpion, centipede, buck grass, angelica, dandehon herb, notopterygium root, angelica root, root of Taiwan angelica, rhizome of Sichuan lovage, bark of eucommia, dried rehmannia root, medlar, rhizoma drynariae, aucklandia root, root of mongolian milkvetch, root of pseudo-ginseng, dried body of ground beetle, daemonorops draco, olibanum, myrrh, raw keel, bark of amur corktree, fresh oyster shell, leatherleaf milletia, fried cucumber seed, batryticated silkworm, calcined pyrite, herb of sieblod wildginger, radix aconiti preparata, kusnezoff monkshood, caulis tinosporae, liquorice, prepared rhizoma arisaematis, herb of glabrous sarcandra, yam rhizome, dried leech and prepared nux vomica.