This study was to evaluate the effects of a lumbar stabilization exercise on balance, muscular strength in golfers with chronic low back pain. Subjects were allocated to two groups: experimental group(n=11) and control group(n=11). Subjects in experimental group received a lumbar stabilization training during 30 minutes, with 3 session per week for 8 weeks, and Subjects in all groups received a conventional stretching exercise during 30 minutes, with 5 session per week for 8 weeks. All subjects were measured on static balance, trunk muscle activity in pre and post test. The result was that lumbar stabilization exercise group was significantly increased the static balance, trunk muscle activity after intervention. Lumbar stabilization exercise group was significantly improved the static balance, trunk muscle activity, more than control group. In conclusion, a lumbar stabilization exercise improved balance, trunk muscle activity in golfers with chronic low back pain.