This article investigates the relationship between life satisfaction and physical health of retired female athletes, as well as the factors that may affect this relationship. In addition, the study also found the impact of retirement time on life satisfaction. The research results indicate that athletes have higher life satisfaction in the first year after retirement, but in the 3-5 years after retirement, life satisfaction significantly decreases. This may be due to the challenges and pressures of adapting to new lifestyles and changing roles after retirement. Our research delved into the disparities in life satisfaction across various sports disciplines, examined the mediating influence of social support within this context, and considered the effects of age and gender on these relationships. Notably, we identified variations in life satisfaction levels among athletes engaged in different sports, with social support emerging as a pivotal factor in enhancing life satisfaction. Furthermore, we observed that age and gender also impacted these dynamics. The findings from this study hold significant implications for enhancing the support and resource allocation provided to retired athletes. By understanding these multifaceted relationships, we aim to enhance the quality of life and physical health of retired athletes.