Morality is very important in life, and it facilitates social interaction. The morality that is instilled in the home, in schools, and in the wider society makes it easier for individuals to function in their lives. For this reason, the factors influencing the morality of students warrant urgent investigation. A quantitative approach was chosen for this study, one using research scales. The three research scales comprised the morality scale, both self-adjustment scales, and the self-control scale. The research subjects comprised 210 students at the senior high school Al-Yasini Pasuruan, all aged 14-18 years. The study resulted in four findings: First, self-adjustment influences the morality of students. Second, self-control also influences the morality of students. Third, self-adjustment and self-control both have a positive effect on morality. Four, self-control proved to be a mediator between self-adjustment and morality. The results of this study suggest that a more comprehensive study for determining other research variables will yield different results, however. More specifically, further studies will be needed to reveal other factors that may promote morality in school students.