This research was planned to reveal whether school engagement is a mediator in the relationship between grit and academic life satisfaction in university students. 487 students, including 316 (65%) males and 171(35%) females, were recruited. The students were 18 to 33 years old, and the mean age was 20.62. The measures included the Academic Life Satisfaction Scale (ALSS), the Short Grit Scale (GRIT-S), the Utrecht Work Engagement Scale-Student Form (UWES-SF), and a Personal Information Form (PIF). Data analysis included the structural equation model and Pearson's correlation analysis. A statistically significant positive correlation was observed between grit, school engagement, and academic life satisfaction. In addition, grit and academic life satisfaction were mediated by school engagement. We handled the results considering grit and school engagement in raising the academic life satisfaction of university students.