In 2023, the number of newborns in Korea was only 235,000, a decrease of 1 1% compared with the previous year, setting a record low. As a result, South Korea's fertility rate has dropped to 4.4‰, which is not only significantly lower than that of Japan, which is also facing the population crisis, but also ranks among the lowest countries in the world. This trend of low fertility rate may be caused by many factors. Some studies have pointed out that high housing prices, high education costs, unstable employment and other socio-economic factors are one of the main reasons for the decline of fertility rate in South Korea. In addition, the increase of women's participation in the labor market has also had an impact on the fertility rate, because many women choose to postpone childbirth or choose not to have children in order to pursue career development. At the same time, the change of traditional family concept and marriage mode has also played a certain role in the decline of fertility rate.