Toward a background of young people’s decreasing housing affordability and parents’ increasing involvement in intergenerational housing support, this study investigates how such support influences parents’ expectation of future care from adult children. Using data from the China Health and Retirement Longitudinal Study, we found that, in general, middle-aged/older adults who provided adult children financial housing support were more likely to expect old-age care from them. The help-receiving child was more likely to be an expected caregiver than the other children in multi-children families. Moreover, the reciprocal relationship was most prominent among the 1950s cohort, compared with the pre-1950s and the post-1950s cohorts. Our study broadly contributes to understanding how modernization reshapes intergenerational relationships and family members’ expectations of commitments toward each other. It also informs the design of a comprehensive multi-level care system for older adults in China.