Through the study of the current situation of chronic diseases in middle?aged and elderly people, we can understand the current situation of chronic diseases in China; understand the current situation of intergenerational support, whether there are differences in gender, age, urban and rural areas, medical insurance, etc., and their impact on the health of chronic patients in middle?aged and elderly populations. Economic support is significantly different among different individual characteristics and social status groups, and the frequency of contact and visit is mainly different among different age groups and medical insurance populations; intergenerational support has an impact on health self?evaluation, life satisfaction and self?care ability; chronic patient population has a high proportion of depression, and we should pay more attention to the intergenerational support of chronic patient groups and pay attention to their mental health.