A study to assess the effectiveness of Pilate's exercises on low back pain among nursing personnel in a selected hospital at Kanyakumari district.In this study the Research design was Quasi Experimental – One group pretest posttest design. Totally thirty nursing personnel were selected from Thiraviam hospital. The samples were selected based on nonprobability purposive sampling technique the nursing personnel were selected. The samples level of pain was assessed by Functional rating scale. The researcher selected the nursing personnel who had mild and moderate level of low back pain. Pilates exercise is performed once a day by the nursing personnel for 30minutes for 24 days. An evaluation was carried out on 24th day by using functional rating scale.It was found that the mean low back pain at pretest was 19 and at posttest was 12.97. The mean difference was 6. 03′t’ value was 15.82, indicating that there was a highly significant reduction in level of low back pain at p<0.05 level.There will be a significant relief from low back pain among nursing personnel after practicing Pilates exercise.