Abstract: Although there are plenty of literatures focused on the influencing factors of subjective well-being, few have noticed the importance of time distribution. Based on the work-life balance theory, we conducted a survey on young people who live in the urban areas of China and made an observation on the structural allocation of their work and life time and its impact on subjective well-being. The regression analysis indicates that increasing time that spends with family members and opportunities of short term journeys could enhance young people’s subjective well-being. Reducing their time spent on housework could lead to the same result. Thus, the policy makers could enhance the well-being of people at working age by improving social policies such as adopting more flexible work system and more reasonable holiday system, and promoting the development of household service.