This study is about the effect of the work-life balance of the cabin crew on job stress and turnover intention. The work-life balance was selected as one of ways to increase the service productivity of airlines, and the purpose is to identify the causal relationship between them and manage turnover intentions. This study empirically analyzed 214 cabin crew working for Full Service Carrier. As a result, it was found that the failure to manage the war crew of the cabin crew also affected job stress and turnover intention. This study set the work-life balance into four sub-factors, Work-family balance, work-leisure balance, work-performance balance, overall balance. Among these, the balance between work and leisure did not appear to affect job stress, however, others were found to have an effect. Job stress affects job turnover intention. And some factors showed a moderating effect on job performance. Based on these data, I would like to give basic data to human resource management related to airline cabin crew. Also This study is recommended that airlines establish a policy for work-life balance to makes it easier for flight attendants to manage their turnover intention and improve the service performance of cabin crew.