Abstract: In the context of actively implementing the national strategy of population aging and promoting the overall construction of digital China， allowing more older people to adapt to the transformed life and enjoy digital welfare， the issue of digital integration of older people is undoubtedly a key topic in the coming period. Based on the social support theory， this paper utilizes the CGSS2017 data to conduct a study to classify digital integration into three dimensions， namely cognitive， skillbased and applied digital integration， and to explore the influence of informal support on the digital integration of the elderly on this basis. The results show that informal support from oneself significantly and positively affects the cognitive digital integration of middleaged and highaged seniors， informal support from children significantly and negatively affects the skillbased digital integration of lowaged seniors， and informal support from peers significantly and positively affects the applicationbased digital integration of lowaged seniors. Based on this， we propose to deepen the supply of Internet resources， promote the ageing and accessibility transformation of online and offline digital products and services， emphasize the power of peer groups， and encourage digital feedback， with the aim of providing a close and efficient social support system for the digital integration of the elderly， and accelerating the overall construction of digital China.

Key words: informal support; older people; digital integration

摘要： 在积极实施人口老龄化国家战略和推进数字中国整体建设背景下，让更多老年人适应转型生活和享受数字福利，老年人的数字融入问题无疑是未来一段时期的关键议题。基于社会支持理论，利用CGSS2017数据展开研究，将数字融入划分为认知型、技能型和应用型数字融入三个维度，探讨非正式支持对老年人数字融入的影响。研究结果表明，源于自身的非正式支持显著正向影响中高龄老人的认知型数字融入，源于子女的非正式支持显著负向影响低龄老人的技能型数字融入，源于朋辈的非正式支持显著正向影响低龄老人的应用型数字融入。基于此，提出深度下沉互联网资源供给、推进线上线下数字产品和服务的适老化与无障碍改造、重视朋辈群体力量和鼓励数字反哺等建议，以期为老年人数字融入提供紧密、高效的社会支持体系，加速数字中国整体建设。

关键词: 非正式支持；老年人；数字融入