The invention relates to an Inula nervosa Wall oil capsule preparation, which is prepared from the following raw materials in parts by weight: 80 parts of Inula nervosa Wall, 25 parts of rhizoma anemarrhenae, 25 parts of costus root, 22 parts of curcuma aromatic, 20 parts of myrrh, 20 parts of prepared rehmannia root, 20 parts of tuckahoe, 18 parts of cortex albiziae, 18 parts of dandelion, 17 parts of rhizoma zingiberis, 15 parts of cistanche, 15 parts of cassia twig, 13 parts of root of common peony, 12 parts of rhizoma atractylodis, 12 parts of ligusticum wallichii, 10 parts of nux vomica, 10 parts of malt, 10 parts of radix aconiti preparata, 9 parts of peach kernel, 7 parts of liquorice, 7 parts of the seed of cowherb, 5 parts of teasel root and 5 parts of frankincense. The Inula nervosa Wall oil capsule preparation can treat both symptoms and root causes of rheumatoid arthritis, is harmless and non-toxic for a human body, does not have a side effect, has low price, is simple and convenient to prepare, and has a wide application prospect.