The article empirically analyzes the effects of intergenerational support from children on the self- rated health level of rural older adults based on data from three periods of the China Family Tracking Survey （CFPS）in 2016，2018 and 2020. The results show that children’s caregiving support and emotional support can significantly improve the self - assessed health level of rural older adults，and OLS and propensity score matching（PSM）were used to find that the above results still hold；the self-assessed health level of older adults of younger age，female，and those in the central and eastern regions are more likely to be affected by children’s intergenerational support；and there exists a transmission mechanism of“intergenerational support from children - life satisfaction - self-rated health of rural elderly”. The results of this study provide an effective reference for further promoting the process of healthy aging.