In China, the mandatory family planning policy that lasted for half a century was once considered a necessary measure to control population, alleviate resource pressure, and promote economic development. However, over time, the long-term consequences of this policy gradually became apparent, triggering a series of serious social problems. After the policy, China's population structure has undergone drastic changes, with an increase in the elderly population, a decrease in labor force, and gender imbalance, which have put pressure on social and economic development. The family size has shrunk, and traditional concepts have been impacted. The policy has changed the concept of childbirth, and young people tend to have one or no children, exacerbating aging and uncertainty in population development. The past impact of family planning policies cannot be denied, and in-depth research is needed to find solutions and contribute to future population and social stability.