Abstract: In order to explore the relationship of parents' phubbing behavior and adolescents' problem behavior, 512 adolescents were surveyed with the parents' phubbing behavior scale, the strengths and difficulties questionnaire (the Edition for Students), the parent-children adolescent communication scale and the self-control scale. It is found that parents' phubbing behavior, parent-children communication, problem behavior and self-control are significantly correlated with one another; Parents' phubbing behavior can predict adolescents' problem behavior by means of reducing parent-children communication. Self-control exerts a significantly moderating effect upon the path by which parents' phubbing behavior and parent-children communication predict adolescents' problem behavior. So, parent-children communication can either directly predict adolescents' problem behavior or predict their problem behavior via the moderated path formed by parent-child communication and self-control.