Research on the impact of pension finance on social security improvement under the background of population aging

China's population is aging rapidly, with the proportion of people aged 60 and over continuing to rise. Projected to enter a stage of severe aging by 2035, traditional pension models are struggling to meet demand, and the pension security system faces numerous challenges. As a key measure to address aging, pension finance and its coordinated development with social security are attracting considerable attention. This article analyzes the current status and trends of aging globally and in China, as well as the challenges it presents. It also explains the current status and shortcomings of China's pension finance and social security systems, and proposes pathways for improving their coordinated development, including building a multi-tiered pension finance system and optimizing the social security system. This article aims to provide recommendations for improving the pension security system to address aging and enhance the well-being of seniors.