For parents, on the one hand, the decrease in the number of children leads to the decrease in the amount of child support and education expenditure, and increases the actual savings balance (at the same time, it can also invest in finance to further increase savings). On the other hand, because parents have certain expectations for the aggravation of the pension problem, their marginal propensity to consume decreases, further increasing their savings. Therefore, parents' self-reliance ability may be improved to a certain extent.