By applying latent class model on the data of Chinese Longitudinal Healthy Longevity Study 2018, this paper analyzes the lifestyle patterns and the impacts of socio-economic status on lifestyle patterns among the older adults in China. Results show that the lifestyle patterns of the older adults in China can be divided into 4 types, which could be characterized as “lowstandard”“healthy”“mixed” and “risky” lifestyle, while the “lowstandard” type is the most distinguished lifestyle pattern of the older adults in China. The impacts of socioeconomic status on lifestyle patterns are not only significant by itself but could also change with age with different mechanisms. In the disadvantaged socioeconomic groups of older adults, the beneficial effects of socioeconomic status could be offset by ageing. However, in the advantaged socioeconomic groups of older adults, socioeconomic status could offset the adverse effects of ageing. This phenomenon is interpreted as “convergence at lower levels while divergence at higher levels” in this study. Finally, based on the research findings, this paper provides implications for promoting a healthy lifestyle among the older adults in China.