This study aims to employ the Ordinary Least Square method to investigate what determines the choice of retirement age, using 2008, 2009, 2010, 2013, 2015, 2016, 2017 Survey of Workers' Living and Employment Conditions. The empirical results suggest that age significantly affects the choice of retirement age, the elderly are unwilling to retire. However, this study has some limitations: First, this data does not provide all important social-economic-status factors. Second, the effect of pension reform did not be considered in this study.