The invention discloses a medicine for treating hemiplegia caused by hypertension. The medicine comprises uncaria rhynchophylla, chrysanthemum, semen celosiae, earthworms, arisaema cum bile, rhizoma typhonii, motherwort fruit, carthamus tinctorius, ramulus mori, peach kernels, roots of common peony, parched pangolin scales, turmeric, stiff silkworms, hemerocallis citrine, complete trichosanthes kirilowii, gastrodia elata, divaricate saposhnikovia roots, dried tangerine or orange peel, curcuma aromatic, calamus, polygala tenuifolia, coptis chinensis, cooked rhubarb, radix achyranthis bidentatae, cowherb seeds, akebiaquinata, pinellia ternata, liquidambar formosana, Chinese honeylocust fruit, long-noded pit viper, ganoderma lucidum, liquorice and centipedes. The medicine disclosed by the invention can break through blood brain barrier to act on injured nerve, has the advantages of safety and low cost, and can radically treat light hemiplegia, incomplete hemiplegia and severe hemiplegia, and the treatment rate of patients suffering from hemiplegia can be up to 98%.