Purpose : The purpose of this study was to investigate the effect of horse riding exercise for pain and body flexibility in the patient with chronic low back pain. Method : 26 subjects in H-equestrian were randomly divided two group, ball exercise(BE) group and horse-riding exercise(HE) group. Each group carried out 40 minutes exercise three times a week for 8 weeks. VAS were measured for pain, and evaluation of body flexibility in position with forward and backward. Result : The results were as follows, the pain scales of VAS(visual analog scale) between ball exercise and horse-riding exercise groups in post-test, were significantly different in measures(p<.05). And there were significant in two group after exercise(p<.05). The flexibility scales of body between ball exercise and horse-riding exercise groups in post-test, were significantly different in measures(p<.05). And there were significant in two group after exercise(p<.05). Conclusion : These finding revealed that horse-riding exercise was effective on pain and body flexibility of patient with chronic low back pain so that these exercise can be new altematives exercise for pain and body flexibility in the patient with chronic low back pain.