The purpose of this study was to determine the relationship between teacher`s leisure activity participation, job stress and life satisfaction in elementary, middle and high schools in Cheju Island. For attaining the purpose, questionnaire survey was conducted against 684 teachers who were serving at elementary, middle and high schools in Cheju Island. As a result of analyzing the collected data with SPSS program, the following findings were obtained : 1. The Influence of Background Variables on Job Stress arms Lafe Satisfaction 1) Teacher job stress appeared to be different according to background variables. For gender, the female teachers got stress a lot from superior teachers, job burden. By age, the teachers in their twenties suffered stress much from student guidance, and those in their fifties felt a lot of stress because of job burden, personnel administration or treatment. For career, the teachers with 10-year or less career got stress due to superior teachers, student guidance or job burden, and those who had a longer teacher career felt more stress because of job burden. For school grade, the elementary school teachers suffered stress a lot from job burden, and the middle school students got stress from personnel administration and treatment. The single teachers` stress came from superior teachers, student guidance or job burden, but that of the married teachers stemmed from personnel administration or treatment. For income level, those who earned less than 1,500 thousand won got stress from superior teachers, student guidance or job burden, but the teachers whose income was 2,100 to 2,500 thousand won suffered stress because of personnel administration or treatment. By position, the lay teachers` stress was caused by superior teachers, and that of the head supervisors resulted from personnel administration or treatment. 2) Teacher Life Satisfaction appeared to no difference according to background variables. 2. The Effect of Teacher`s Leisure Activity on Job Stress and Life Satisfaction 1) The extent of participation in health or sports activities made a difference to their stress that resulted from superior teachers, disagreement, conflict, student guidance, job burden, personnel administration or treatment. Those who enjoyed such kinds of activities less felt more stress. 2) The degree of stress caused by superior teachers, disagreement, conflict, student guidance, job burden, personnel administration or treatment, was different according to the extent of ecjoying hobbies or cultural activities. Those who enjoyed such things less suffered more stress. 3) How much they took part in entertainment or socializing made a difference to their level of stress caused by student guidance, personnel administration or treatment. The less participated teachers felt more stress. 4) Their stress that originated in disagreement, conflict, job burden, personnel administration or treatment, varied in accordance with to what extent they joined in service or religious activities. The less participated teachers got more stress. 5) Better life satisfaction was expressed by thane who erjoyed the followings more: health/sports activities, hobby/cultural activities, viewing/appreciation, entertainment/socializing, or service/religious activities. Specifically, the teachers who had an interest in service or religious activities showed the highest life satisfaction, and the teachers who were interested in viewing/service activities were least satisfied. 3. Job Satisfaction Affected by Life Satisfaction The teachers who were more contented with their own lives got less stress from superior teachers, disagreement, conflict, student guidance, job burden, personnel administration or treatment. 4. Leisure Activity Type, Job Stress and Life Satisfaction Job stress was affected by health/sports activities, job stress and life satisfaction were affected by hobby/cultural activities, life satisfaction was affected by service/religious