This study was performed to assess the efficacy of manipulation for the sacroiliac joint subluxation patients. The subjects of this study ware 8 patients with sacroiliac joint subluxation who visited the out patient department of the physical therapy wooridul clinic, from January 1, 2005 through July 3, 2005. To find out the effect of manipulation, we sampled 8 patient treated with manipulation(Thompson technique), using by radiographic. All patients were treated 2days a week for 12 weeks. The results after 12 week treatment, compared with before treatment, were as follows : 1. The improved in sacrum lateral subluxation in the manipulation after 12 week treatment was very significant(p<.01) 2. The improved in sacrum rotation subluxation in the manipulation after 12 week treatment was significant(p<.05) 3. The improved in lumbo-sacral anger subluxation in the manipulation after 12 week treatment was very significant(p<.01).