Using data from the 3-wave survey "Well-being of the elderly in Anhui Province" conducted in 2001,2003 and 2006 by the Institute for Population and Development Studies of Xi’an Jiaotong University,and employing individual growth models with the nested-structure data,this study investigates the dynamic influence of intergenerational support on life satisfaction of the rural elderly in China.Results show that receiving financial support from adult children,receiving and providing intergenerational assistance with household chores from and to adult children,and stronger emotional cohesion with children can increase the trend of life satisfaction.In the process of the influence on life satisfaction,receiving financial support could substitute for receiving the intergenerational assistance with household chores from the adults.This study reveals that benefit reinforcing effects derived from the main effect models are the influential mechanism of intergenerational support on life satisfaction of the elderly.