Routine and simple jobs are absolutely different stressors from challengeable, complex and meaningful jobs because of requirements, results and preferences. Challengeable and complex jobs require more intellectual flexibilities and intricate thought processes than simple routine jobs do. Furthermore, growth need strength(GNS) refers to individual need for personal growth and development. People who have high GNS prefer to challengeable works which need skill variety and task significance. In contrast people who have low GNS prefer routine tasks. GNS explains that people have differences how they react to work. The fitness between GNS and job characteristics influences psychological states such as experienced meaning fullness of the work and outcomes such as high internal work motivation, satisfaction with work and performance. In this study, we analyze the brain waves of each person whose GNS is different, and which kind of response at stress.