Smoking prevalence has been a significant issue in China. This present study investigates family influences on the smoking behaviors of highly-educated Chinese youths (HECY) and explores whether family factors work as distal factors in the revised framework of the theory of planned behavior. Convenience sampling and snow-ball sampling have been utilized to select participants from highly-educated Chinese youth population who are students studying in colleges or universities and people who recently graduated from Chinese colleges or universities with Bachelor's and/or Master' degrees. This study relies on quantitative methodologies to analyze the data from the participants' responses to online cross sectional surveys with SPSS. This present study has determined that family influences do contribute to the smoking behaviors of highly-educated Chinese youths. In addition to examining the proximal factors (highly-educated Chinese youths' attitudes toward smoking, self-efficacy and social norms of smoking) in the model of the theory of planned behavior, this current study has examined the following distal factors: (1) parental communication about smoking, (2) communication about smoking among siblings, (3) parents, siblings and/or cousins' attitudes toward smoking, and (4) smoking behaviors of parents, siblings and/or cousins.