The invention discloses a backache relieving capsule for treating backache and a preparation method thereof. According to different traditional Chinese medicine characteristics, ephedra stem, pawpaw, herba epimedii, radix angelicae pubescentis, notopterygium root, bark of eucommia, rhizoma cibotii, clematis root, achyranthes root, licorice root, dragon's blood, prepared semen strychni, prepared bitter orange, ground beetle, scorpion, pseudo-ginseng, muscardine silkworm and colchicine as raw materials are respectively subjected to processing and extraction, the extraction products are blended according to a certain ratio, and the mixture is processed to form the capsules. Through combination of Chinese and western medicines, the backache relieving capsule has effects of strengthening muscles and bones, relaxing muscles and stimulating blood circulation, and dispersing blood stasis and relieving pain. The backache relieving capsule is used for treating lassitude in loin and legs and limb numbness caused by protrusion of lumbar intervertebral disc, sciatica and lumbar muscle degeneration, can fast promote nucleus pulposus water loss shrinking and fast elimination of tissue edema around a nerve root, realizes double effects and simultaneous treatment of principal and subordinate symptoms, and innovates a very convenient, safe and economic oral premedication treatment method for treating lumbar disc herniation.