The invention relates to clysis stasis-removing occlusion-dredging traditional Chinese medicine decoction for treating benign prostatic hyperplasia and chronic prostatitis urination discomfort. The treatment administration problems of the benign prostatic hyperplasia and chronic prostatitis urination discomfort can be effectively solved. The method comprises the following steps: preparing the decoction by using fructus evodiae, fructus psoraleae, herba cistanche, schisandra chinensis, peach kernel, safflower, Caulis Spatholobi, codonopsis pilosula, poria cocos, bighead atractylodes rhizome, rhizoma alismatis, Tetrapanax papyriferus, beautiful sweetgum fruit, the root of bidentate achyranthes, Polygonum aviculare, fringed pink and liquorice, mixing the raw medicinal materials together, adding water for immersing, soaking for 30-60 minutes, boiling by using strong fire, decocting for 30-40 minutes by using slow fire, filtering, adding water into the decoction dregs for immersing, boiling by using strong fire, decocting for 30-40 minutes by using slow fire, filtering, merging the filtrate twice, and uniformly mixing. The traditional Chinese medicine decoction disclosed by the invention is scientific in formula, rich in raw materials, simple in preparation method, good in effect, convenient to use, safe and low in cost and is effectively used for treating the benign prostatic hyperplasia and chronic prostatitis urination discomfort.