This study aims to determine the effect of the application of the Two Stay Two Stray learning model (TSTS) to the history of student learning outcomes at SMA Negeri 7 Medan. The research method used is quasi-experimental. The study population was students of class X IPS with a sample of 65 students consisting of 34 students of class X IPS 2 as an experimental class and 31 students of class X IPS 1 as a control class. Data collection techniques using observation and tests. The data obtained were analyzed using the t-test. The observation results showed that 91% of the experimental class students who took part in learning with the TSTS model got very good average scores. The average post-test value of the experimental class was 80.3, while the average value of the post-test of the control class that followed the learning with the conventional model was 63.70. T-test results for the post-test scores were obtained tcount > ttable (7,004 > 1,670).These results indicate that the TSTS learning model has a great influence in improving the history of student learning outcomes in class XI IPS 2 SMA Negeri 7 Medan.