Abstract:The reform and development of basic oldage insurance system are facing a bottleneck.Improving the system of the third pillar pension system is imperative.From the perspective of the improvement of pension system,this paper constructs the logistic regression model of influencing factors of participation of commercial pension insurance and finds out that the individual income level,educational level,background of economic development,political status,medical insurance of social security,family property (real estate and cars),number of children,professional attributes and age have a significant impact on the behavior of commercial pension insurance.Therefore,this paper proposes that it is necessary to play a synergistic interaction of social security and commercial insurance,narrow the development gap between the commercial endowment insurance areas,attach more importance to the great development space of rural commercial pension insurance,improve the level of education of all people,strengthen the popularization of commercial pension insurance knowledge,continue to improve the income level of low earners and implement the system integration of oldage insurance system and so on.