使用中国家庭追踪调查（CFPS）的2020年微观数据，从家庭层面分析数字素养对中老人体育锻炼参与的影响及其机制。经研究发现，数字素养的提升能促进中老年人参与体育锻炼，通过更换估计方法、替换核心解释变量等稳健性检验与内生性问题处理后，该结论依然成立。异质性分析结果表明，数字素养对中老年人参与体育锻炼具有不同程度的显著影响，具体表现为：东部地区比中西部地区更明显，中年人比老年人更明显，中老年男性比中老年女性更明显，中学学历中老年人比小学及以下学历中老年人和大学及以上学历中老年人更明显。机制检验发现，数字素养提升可促进家庭收入增加和主观幸福感的提升，可以间接影响中老年人参与体育锻炼。据此提出建议：加强居民数字素养教育，鼓励中老年人积极参与；营造老年友好型数字生态环境，优化数字体育资源与服务；完善数字体育基础设施，组织开展数字体育活动。

Using the 2020 microdata from the China Family Tracking Survey (CFPS), we empirically analyze the impact of digital literacy on the participation of middle-aged and elderly people in physical exercise and its mechanism at the household level. It is found that the improvement of digital literacy can promote the participation of middle-aged and elderly people in physical exercise, and the conclusion still holds after conducting robustness tests and addressing endogeneity issues by replacing the estimation method and replacing the core explanatory variables. Heterogeneity analysis shows that digital literacy has different degrees of significant effects on middle-aged and elderly people's participation in physical exercise, as follows: more obvious in the eastern region than in the central and western regions, more obvious in the middle-aged group than in the elderly group, more obvious in males than in females, and more obvious among those with a secondary school education than among those with a elementary school education or below and those with a university education or above. The mechanism test found that digital literacy can promote family income and subjective well-being indirectly influence middle-aged and elderly people's participation in physical exercise. Accordingly, the following recommendations are made: strengthening education and training on digital literacy for residents to encourage middle-aged and elderly people to actively participate; creating an age-friendly digital ecosystem to optimize digital sports resources and services; improving digital sports infrastructure; and organizing and carrying out digital sports activities.