This article discusses the application of the problem based learning model in history learning in the XI IPS class at SMA Erlangga Pematangsiantar, as well as its influence on students' historical learning outcomes. The research method used is classroom action research conducted with 2 cycles. Data collection uses observation sheet instruments, interviews, written tests, field notes, and student worksheets. The results showed that the application of the problem based learning model in historical learning was able to improve student learning outcomes. This is indicated by the value obtained by students in each cycle. In the first cycle, the average value of student activity reached 71, while the learning outcomes got an average value of 69. In the second cycle, the average value of the activity and student learning outcomes increased. The average value of activity reaches 75, while the average value of learning outcomes reaches 80.