The invention relates to a compound Chinese medicinal preparation for treating IgA (
Immunoglobulin A)
nephropathy. The compound Chinese medicinal preparation comprises the following Chinese medicinal raw materials by weight: 13-17 grams of
astragalus, 8-12 grams of
rehmannia root, 8-12 grams of red-rooted
salvia root, 8-12 grams of common
bletilla pseudobulb, 2-4 grams of cicada shell, 8-12 grams of garden
burnet root, 16-24 grams of cogongrass
rhizome and 2-4 grams of Chinese
caterpillar fungus (brewed). A preparation method of the compound Chinese medicinal preparation comprises the following steps of: cleaning the eight types of medicinal materials; mixing proportionally; adding water in an amount which is 6-8 times the total weight of the medicinal materials or 70 percent by volume of
ethanol for decocting for three times, every time for 40 minutes; combining decoction solutions obtained in the three times; filtering; and concentrating to obtain a
liquid extract of which the
specific weight is 1.21 at 60 DEG C. The compound Chinese medicinal preparation can be prepared into any pharmaceutical
dosage form, such as tablets, capsules, granules, oral liquid, pills and syrup with the conventional preparation process. The compound Chinese medicinal preparation prepared with the method has the advantages of great reduction in the concentrations of
albuminuria and hematuria of patient suffering from IgA
nephropathy, great improvement on the
kidney function, remarkable
curative effect and great reduction in side effects and untoward reactions.