Total 150 patients with chronic pelvic pain syndrome were randomly divided into three groups with 50 cases in each group. Patients were treated with tamsulosin, Qianlie'an Shuan and tamsulosin plus Qianlie'an Shuan for 12 weeks, respectively. Patients were assessed with the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) before and after treatment. The score of NIH-CPSI decreased from 25. 1 ± 2. 2 to 19. 5 ± 1.7 after treatment in tamsulosin group; 25.0 ± 2. 2 to 19. 1 ± 1.7 in Qianlie'an Shuan group, and 24. 8 ± 1.7 to 16. 8 ± 1.4 in combined therapy group, all P ＜0. 01. The results indicated that tamsulosin, Qianlie' an Shuan or combined therapy were all effective in alleviating the symptoms and improving the quality of life, and the combined therapy was superior to single therapy in relief of symptoms.