Abstract: The current low fertility rate in China has become a recognized fact, and the change in childbearing attitude is one of the key reasons. Childbearing motivation is an important component of childbearing attitude and is at the forefront of the sequence from childbearing attitude to behavior. This article examines cohort and gender differences in childbearing motivation by asking respondents why they should have children. Based on data from the China Family Panel Studies (CFPS) in 2020, this study uses cluster analysis to classify people's childbearing motivation into four categories: "low intention and negative", "individual-oriented", "dual-oriented emotional" and "family-oriented". The result shows that more than half of Chinese residents still have family-oriented motivation of childbearing while individual-oriented and dual-oriented emotional motivation account for 23% and 15% respectively. Only 9% of the residents have low intention and negative childbearing motivation. Moreover, there are significant inter-cohort differences in childbearing motivations. Earlier birth cohorts are more likely to have dual-oriented emotional, family-oriented motivations; while younger birth cohorts are more likely to have low intention and negative, individual-oriented motivations. Among the post-80s and post-90s groups, family-oriented motivations of childbearing gradually lose their dominance, while individual-oriented motivations increase significantly. In terms of gender differences, men's childbearing motivations are more traditional than women's, and the extent of inter-cohort change is smaller for men. The differences in childbearing motivation between men and women tend to widen among later generations. The study suggests changes in educational attainment as a possible explanation.

Key words: childbearing motivation, cohort, gender, education