This study utilized data from the 2018 China Family Panel Studies to study 3 712 elderly aged 60 and above who have children without living together. Logistic regression was used to analyze the impact of two - way intergenerational support on the utilization of medical services for empty nesters，whereas Quantile regression was used to analyze the impact of two-way intergenerational support on medical expenses. The results showed differences in the impact of intergenerational support on the medical expenses of empty nesters among different levels of medical expenses. The positive influence of upward economic support increased with medical expenses. The negative influence of downward care support increased with medical expenses. The positive influence of intergenerational emotional support was stronger at the median medical expenses level. This study suggested fully utilizing the fundamental role of family pension to enhance children’s awareness of the health condition of empty nesters，therefore effectively improving the utilization rate of medical services for empty nesters.