This study analyzed the effects of personal-job fit on employees' Flow experience, as well as the moderating effects of challenge-blocking stress and leader humor. Therefore, the following conclusions can be drawn in this study :(1) Personal-job fit has a significant positive impact on employees' Flow experience. (2) Challenging job stress and leadership humor have a negative moderating effect on the impact of personal-job fit on employees' Flow experience. (3) The moderating effect of interruptive job stress on the impact of personal-job fit on employees' Flow experience was not significant.