During the COVID-19 pandemic, many grandparents in China have spent more time with their grandchildren than they used to . When their adult children returned to work after a period of lockdown, many grandparents extended their roles from taking care of household tasks and looking after their grandchildren ’ s basic needs to supervising their online learning and providing academic support . It has been a precious opportunity for both the children and their grandparents to get to know each other better and to learn from each other . During this challenging period of home learning, a Chinese initiative called the “ Shaping Students ’ Vacation Life Project ” (SSVLP), which is led by the Shanghai Municipal Institute for Lifelong Education (SMILE) of East China Normal University (ECNU), conducted a two-month project that investigated intergenerational learning between grandparents and grandchildren (IL-GP & GC) across seven primary schools located in six areas of China . They explored topics such as pandemic prevention, health and fitness, traditional culture and information literacy . Following this, the co-authors of this article conducted an interpretive inquiry to explore how the participating primary schools implemented the IL-GP & GC project, and to understand its impact . Based on in-depth interviews with 11 teachers and 7 families (including 7 grandchildren aged 7–13, and their 7 grandparents aged 60–68), four main findings emerged: (1) both generations gained more health knowledge, life skills and values; (2) the older generation changed their learning perspective and behaviours; (3) the younger generation understood their grandparents more and cultivated the concept of lifelong learning; and (4) the relationships between grandparents and grandchildren became closer.