The invention discloses a medicine for treating hypertension. The medicine comprises Ligusticum wallichii, uncaria, Eucommia ulmoides, unprepared rehmannia root, Rhizoma Coptidis, Radix Scutellariae, Chinese angelica, Chinese Taxillus Twig, Radix Paeoniae Rubra, Radix Salviae Miltiorrhizae, haw, Achyranthes bidentata, Radix Puerariae, Cortex Moutan, spine date seed, Semen Brassicae, Radix Astragali, prepared rehmannia root, white peony root, Tortoiseshell, Cortex Lycii, rhizoma gastrodiae, chrysanthemum, Spica Prunellae and Mythic Fungus according to a proper ratio. The medicine of the invention has curative effects on primary hypertension, renal hypertension and secondary hypertension, the effective rate of the medicine on hypertension is 100%, the cure rate is 98%, and the medicine which has the advantages of convenient oral administration, no toxic side effect, difficult recurrence after curing, fast effectiveness after the medicine administration and easily available and cheap medicinal material is an ideal medicine for treating above hypertension diseases.