This research aims to determine the effect of the implementation of the Problem Based Learning (PBL) model on student learning outcomes in the Informatics subject for grade X Phase E at SMAN 1 Hiliran Gumanti. This type of research is a quasi-experimental study. The sample in this study consisted of 60 students from grade X Phase E. The data collection technique used was a test method. The test instrument was used to collect data on student learning outcomes after applying the Problem Based Learning (PBL) model. Data were analyzed using a t-test statistic with a significance level of 0.05. The results showed that the average score of the experimental class was 83.5, and the average score of the control class was 75.6. The t-test calculation resulted in t_calculated = 3.024, which is greater than the t_table value at the 0.05 significance level, which is 1.671. It can be concluded that the implementation of the Problem Based Learning (PBL) model has a significant effect on student learning outcomes in the Informatics subject for grade X Phase E at SMAN 1 Hiliran Gumanti