Foster Grandparent Program (FGP) is a multigenerational approach to community volunteerism. The study uses intergenerational solidarity to conceptualize the impact of the FGP. The study aims to examine the impact from two dimensions by analyzing data from the Assignment Assessment Forms and the New General Self-Efficacy Scale. Paired t-tests were conducted to determine whether there is a difference in the mentees’ behavior pre- and post-intervention from four years and byway of three priority areas. Results indicated that the FGP has an impact on both the mentees and volunteers. Findings suggest that the program’s activities are the vehicle for intergenerational solidarity.