The invention relates to a vegetable drug compound preparation for treating urarthritis, which comprises the following components of radix angelicae pubescentis, large-leaved gentian, cassia twig, Korthalsella japonica, divaricate saposhnikovia root, processed radix aconiti lateralis, the root of bidentate achyranthes, fructus psoraleae, notopterygium root, poria cocos, angelica sinensis, ligusticum wallichii, rubefacient, the dried rhizome of rehmannia, the rhizome of oriental water plantain, the root of red-rooted salvia, astragalus mongholicus and liquorice. A preparation method of the vegetable drug compound preparation comprises the following steps of: according to the formula, adding 4-12 times of water, decocting for 1-3 h and filtering out medicine juice; adding 4-12 times of water, decocting for 0.5-2 h, filtering out medicine juice, merging the decocting solution in the two steps, standing, leaching supernatant, condensing the supernatant to have the proportion of 1.08-1.35, drying and adding medicine auxiliary materials to prepare the vegetable drug compound preparation. The vegetable drug compound preparation has the efficiencies of warming yang, easing pain, clearing heat, cooling blood, promoting blood circulation and stopping pain, can reduce blood uric acid, eliminate arthritis disease caused by uric acid crystal, prevent recrudescence and treat both principal and secondary aspect of disease. In addition, the vegetable drug compound preparation has the advantages of stable quality, convenient taking, high curative effect, no toxic and side effect and the like.