This research aims to determine the effect of cooperative learning model with two stay two stray type in students learning outcomes of 7 th grade students of state junior high school 1 Onolalu. The type of this research is a quasi experimental study with the population of this study, namely all 7 th grade students state junior high school 1 Onolalu. The sample of this research consisted of two classes that were directly selected, namely 7 th -A gradeas aexperiment class and 7 th - B as a control class. The research instrument used are tes of student’s learning outcomesof multiple choiceand student’s activity sheet. The research instrument used to measure students' abilities was in the form of multiple choice and student activities during the learning process were observedalternately per group.Content validity were used to determine the instrument's validity, and the testretest technique was used to verify the instrument's reliability. Using Pearson's product moment correlation analysis, a reliability coefficient as many as0.76 was obtained. Based on the results of the research, it was obtained thataverage score of the post-test in experimental class is 73.75 with standard deviation (s) is 9.92 and after given the treatment, the average score of the posttest in control class is 62.39 with standard deviation (s) is 10.54. According to the observation of the student activities carried out for 3 meetings, student activity is quite active. Based on the results of one tail t-test for post-test data in experimental class and control class for probability 0.05 obtained significant 0.02 as than less 0.05. Therefore, Ho is rejected and the otherwise Ha is accepted. Based on the results of this research, it can be concluded that the cooperative learning model with two stay two stray type affected tostudent’s learning outcomes of 7 th grade state junior high school 1 Onolalu

Keywords : Cooperative Learning Model, Two Stay Two Stray Type,Students’ Learning Outcomes.