The invention discloses a medicated bath solution for treating gout, which is prepared from the following Chinese herbal medicine raw materials in parts by weight: 30-40 parts of camphor wood chips, 15-25 parts of angelica, 10-20 parts of frankincense, and 10-15 parts of myrrh , 5-10 parts of Rhizoma Chuanxiong, 10-20 parts of Achyranthes bidentata, 20-30 parts of Sappan, 10-15 parts of Dog Ridge, 10-15 parts of Fangfeng, 5-10 parts of Duhuo, 5-10 parts of Notopterygium, 10 parts of Millet Spatholobus ~15 parts, 10~15 parts of Nuxychia, 10~20 parts of pinellia, 10~20 parts of Artemisia argyi leaves, 3~6 parts of safflower, 10~15 parts of Wang Buliuxing, 10~20 parts of rhubarb, Pittosporum bark 20-30 servings, 5-10 servings of shallot. The invention also discloses a preparation method of the medicated bath liquid of camphor wood angelica for treating gout, which mainly adopts crushing and enzymatic hydrolysis of raw materials, microbial fermentation and ultrasonic-assisted ethanol extraction as main steps. The Chinese herbal medicine of the invention has wide source of raw materials, low price, scientific and reasonable formula, simple preparation process, high extraction of functional components of the Chinese herbal medicine, safe and environment-friendly product, no side effect on human body, and remarkable effect of treating gout.