PURPOSE: The purpose of the study was to investigate change of life in middle-aged men. METHOD: The research method employed Q-methodology. twenty-five participants rated 39 selected Q-statements on a scale of 1~9. The collected data were analyzed using pc- QUNAL software. RESULT: Principal component analysis identified 3 types of change of life in middle-aged men. The categories were labeled 'Mature-oriented', 'Effeminate-oriented', 'Juvenescence-oriented'. CONCLUSION: We have found change of life in middle-aged men through this research. To setup and apply differences based on this result is needed.