Objective To investigate the relationship between chronic prostatitis and erectile dysfunction and the effectiveness of psychology-aided therapy.Methods 90 cases of patients with chronic prostatitis received from May 2013 to May 2015 in a hospital of Huanggang City were scored with US Institutes of Health-Chronic Prostatitis Symptom Index（NIH-CPSI）and International Index of Erectile Function-5（IIEF-5）questionnaires and they were given psychology-aided therapy.The relationship between chronic prostatitis and erectile dysfunction was summarized and the effect of psychology-aided therapy was analyzed.Results The incidence of erectile dysfunction in patients with the same type of prostatitis did not increase along with its CPSI scores and there was no significant difference in the occurrence of erectile dysfunction in patients with different types of prostatitis（χ2=2.831

P=0.243）.The difference in the occurrence of erectile dysfunction in patients of different CPSI scores was not statistically significant（χ2=1.311

P=0.519）.The incidence of erectile dysfunction in patients with the same type of prostatitis did not increase along with white blood cell（WBC）levels and the differences in the occurrence of erectile dysfunction in patients with different types of prostatitis and different WBC levels were not statistically significant（χ2=2.831

2.824

P=0.243

0.420）;after treatment

patients′CPSI scores and WBC levels were lower than before treatment and the difference between before and after treatment was statistically significant（P<0.05）;compared with before treatment

there was no significant difference of IIEF-5scores.After psychology-aided therapy

patients′CPSI and WBC levels decreased significantly

IIEF-5scores increased significantly

higher than before and after treatment

and the differences were statistically significant（P<0.05）.The differences in the incidence of erectile dysfunction in patients with different types of prostatitis between before treatment

after treatment and after psychology-aided therapy were not statistically significant（χ2=2.831

2.820

3.229

P=0.243

0.244

0.199）.Conclusion Psychological factors are the etiology of erectile dysfunction in patients with chronic prostatitis and psychology-aided therapy can improve their treatment effect of erectile dysfunction so as to promote the quality of life of patients.