As China’s aging population continues to deepen, the traditional old-age service model is difficult to meet the growing, diversified, and professional needs. As a new paradigm of technology empowerment and social service integration, smart old-age has become a key path to meet the challenges of aging. This paper uses the SWOT-PEST analysis model to systematically analyze the internal advantages and disadvantages, external opportunities and challenges of China’s smart old-age development from four dimensions: politics, economy, society, and technology. The study found that smart pension has significant advantages in improving service efficiency and optimizing resource allocation, but it also faces internal shortcomings such as insufficient aging and unclear business models. At the same time, policy dividends and technological development provide good opportunities for smart pension, while the digital divide and lagging ethical supervision constitute the main external challenges. On this basis, this paper constructs SO, ST, WO, and WT strategic combinations, and puts forward development paths such as integrated platform construction, aging design promotion, government-enterprise coordination and standardization promotion, in order to provide theoretical references and practical guidance for the perfection and innovation of China’s intelligent pension system.