Based on the data of the Third Survey of Chinese Women's Social Status, and using binary Logistic regression method, this paper made an empirical analysis of the impact of bearing two children on urban youth's work-family balance. It is found that there are some different impacts of bearing child on urban youth's work-family balance:the more children the respondents have, the higher probability of family-work conflict occurs. In public childcare services shortfalls, compared with no child or one child, the ratio of family-work conflict of the female urban youth bearing two children is higher, and the gender difference is larger. The female urban youth bearing child less than 3 years old, the status is similar. Some female urban youth bearing child less than 3 years old are forced to interrupt work. The enlightenment of this study for either parent is an only child to bear two children policy is that it important to increase public childcare services in line with balancing work and family.