Abstract:The quality of working time is of great signifi cance to individuals, enterprises and the society as well. On the basis of clarifying its three evaluation dimensions of working hours, working timing and working time autonomy, this research puts forward the basic path model of the impact of working time quality on employees, which reveals the basic path relationship of the working hours, working timing and working time autonomy when they generate impacts on employees. The model claims that working hours, working timing, and working time autonomy all have a direct impact on the outcome variables at the individual level of employees. At the same time, working time autonomy can signifi cantly regulate the impacts of working hours and working timing. This study, by employing the data of the Research on the Chinese Working Conditions in 2018 and using working time satisfaction as the result variable, empirically tests the theoretical model. The test results support the hypothesis of the theoretical model: 1) The higher the degree of overtime work and the non-standardization of working time are, the lower the employee's satisfaction with their working time is; 2) Employees' working time autonomy has a signifi cant positive correlation with their working time satisfaction; 3) Working time autonomy negatively regulates the effect of overtime work and the impacts of non-standard working time on employee's working time satisfaction.