Performing unfinished job tasks using mobile device during off-job time (i.e., mWork) is becoming a common phenomenon. Is it possible for mWork to benefit employees’ family? Based on the transactional theory of stress and coping, the present research aims to shed light on the positive relationships between mWork and two types of family outcome. Using two-wave survey data collected from both teachers and their spouses, we find that mWork increases employees’ family role performance and their spouse’s family satisfaction through active coping. In addition, hope weakens the positive relationship between mWork and active coping as well as the indirect relationships between mWork and two types of family outcome. This research contributes to extant literature on mWork. It also provides practical implications for organizations to help employees deal with mWork appropriately.