The traditional model of family relationships is undergoing significant changes in contemporary China. Nevertheless, little research has delved into the dynamic evolution of intergenerational relationships. To address this research gap, we utilise data from the Chinese Longitudinal Aging Social Survey (CLASS) conducted between 2016 and 2018 (N = 7,009) to analyse the transitions in intergenerational relationships over a two-year period, alongside the predictive factors. Employing Latent Transition Analysis, we unveil three distinct typologies: ‘Tight-Knit’, ‘Intimate-Distant’ and ‘Ambivalent-Distant’, which undergo changes over time. Our study captures the tendency of the integration of tradition and modernity within intergenerational relationship patterns in China, as well as the intricate dynamics of these relationships. Furthermore, we identify the predictive roles of age, gender, household registration, health conditions, life events, family composition and filial piety on relationship transitions. This study expands upon previous typological research on intergenerational relationships and enriches our comprehension of their intricate and dynamic nature.