In this study, the data of China Health and Retirement Longitudinal Survey (CHARLS) 2015 is used to investigate the age and sex pattern of subjective life expectancy, and its socio-economic characteristics of Chinese people aged 45-89 years.The results show as follows:1)The subjective life expectancy of the middle-aged and elderly population decreases with the increase of present age and target age, meanwhile, females are more likely to underestimate their life expectancy; 2) People with lower education, and rural household registration have a lower subjective life expectancy; 3) With the increase of age, the difference in subjective life expectancy caused by education level and urban and rural household registration gradually closed, which also means that the younger the cohort, the bigger the difference. Based on the findings above, the paper suggests that the government should actively enhance the well-being of the socio-economic disadvantaged groups at multiple levels, such as family, community society and other levels, to promote the improvement of their own situation and subjective life expectancy, with aim to achieve a virtuous mutual promotion effect.
