在老龄化与数智化叠加背景下，推动老年群体有效融入数字社会，提升其数字素养，已成为实现“积极老龄观”与“数字中国”战略的重要议题。文章旨在从信息实践视角出发，系统探讨家庭场域中代际学习对老年人数字融入的支持机制，揭示其作为一种协作性信息实践的结构特征与行为逻辑；同时引入活动理论作为分析框架，结合元人种志方法，对多源文本资料中的代际学习信息实践活动进行概念提炼，识别八大核心要素，并构建四大系统结构；进一步基于“活动-行动-操作”的行为层级分析模型，划分代际学习信息实践的三个演化阶段：需求驱动，学习实践与结果反馈。研究表明，家庭代际学习是一种嵌入社会文化情境的系统化信息实践活动，静态上表现为信息生产、代际交流、代际分享与任务协作四大系统的交互联动；动态上呈现出层级分明的行为结构与阶段递进的演化路径，揭示了代际互动中数字技能培育与情感联结的双重功能。

Against the backdrop of an aging population and digital intelligence, promoting the effective integration of the elderly into the digital society and enhancing their digital literacy has become an important issue for realizing the "active ageing" perspective and the "Digital China" strategy. This paper aims to systematically explore the support mechanisms of intergenerational learning for the digital integration of the elderly in the family domain from the perspective of information practices, and to reveal its structural characteristics and behavioral logic as a collaborative information practice. This study adopts activity theory as an analytical framework and combines meta-ethnographic methods to extract core elements from multi-source textual data on intergenerational learning information practices, identifying eight core elements and constructing a four-system structural framework. Furthermore, based on a behavioral hierarchical analysis model of "activity-action-operation", the study divides intergenerational learning information practices into three evolutionary stages: demand-driven, learning practice, and feedback. The study indicates that family intergenerational learning is a systematic information practice activity embedded in a social and cultural context. Statically, it manifests as the interactive linkage of four systems: information production, intergenerational communication, intergenerational sharing, and task collaboration. Dynamically, it exhibits a hierarchical behavioral structure and a stage-progressive evolutionary path, revealing the dual functions of digital skill cultivation and emotional bonding in intergenerational interaction.