The invention discloses a renal failure treating Chinese medicinal preparation, which consists of heterophylly falsestarwort root, coptis root, rhizoma pinellinae praeparata, dried orange peel, indian buead, rhubarb, red-rooted salvia root, twotooth achyranthes root and the like. A preparation to a mobile phase is inspected with a high performance liquid chromatography method: the ratio of methanol to water is 45:55; a detection wavelength is 254 nanometers; the theoretical number of plates is more than or equal to 5000; and not less than 3.2mg of total alkaloids is contained in every 0.35g of berberine hydrochloride. A preparation method of the preparation comprises the following steps of: preparing materials, and preparing raw rhubarb powder from a part of the rhubarb; preparing rhubarb thick paste from a part of the rhubarb; preparing a medicament thick paste: preparing mixed thick paste; uniformly mixing the mixed thick paste with the raw rhubarb powder; preparing renal failure treating medicinal powder; preparing into a capsule, a tablet, an instant herbal medicine, powder and an oral liquid; and inspecting. A renal failure treating medicament provided by the invention has the advantages of higher chemical stability, stable product quality, higher content uniformity, very low content deviation, great increase in active ingredients, quick release of contents after the preparation is taken, high in-vivo utilization ratio and high absorbing rate.