The purpose of this study was to find out the adjustment effect of gender and income level in relation to age preparation and satisfaction of life. The research data for this purpose were used for the 6th year of Korean Retirement and Income Study. The analysis result is as follows: First, the higher the economic and physical level of preparing for aged life, the more satisfied he or she feels about their life. Second, the gender adjusted influence of economic level of preparing for aged life on the life satisfaction, but in the influence of the physical level of preparing for aged life on the life satisfaction, the effect of gender adjusting was not revealed. Third, the income level appeared to adjust the influence of the economic and physical level of preparing for aged life on the life satisfaction. Based on the research result above, by enhancing the level of preparing for aged life according to the gender and the income level, I suggested ways of improving the level of satisfaction with life and the follow-up research.