This paper uses data collected by the 'Child Well-being Study in Greater Taipei to analyze the relationship between parents' working hour patterns and the frequency of parent-child interactions. The results indicate that the frequency of parent-child interactions is higher for parents who can arrange flexible working hours than for parents who work typical hours and atypical hours. However, the influences of working hour types on the frequency of parent-child interactions differ according to whether the parent is male or female. The frequency of parent-child interactions is lower for mothers with atypical working hours than for mothers with typical working hours, but there is no significant difference between these work patterns for fathers. This study also finds that children's age and the families' socioeconomic backgrounds are significantly related to the frequency of parent-child interactions. Nevertheless, explanatory power is increased when the working hour pattern is added as a variable into the statistical model.