The problem-based learning model is a model that plans a problem that is given by educators to be solved by students. This PBL learning model has learning conditions oriented to concrete problems. This research aimed to determine the effect of the problem-based learning (PBL) model on the learning outcomes of class VIII students on Plant Motion Material at MTs Al-Muhajirin Waihatu. The type of research used in this research is descriptive quantitative analyzed using inferential statistics. This research was conducted for three months starting from August 10 to October 10, 2020. The location of this research was carried out in class VIII on Plant Motion Material at MTs Al-Muhajirin Waihatu with a sample of 90 students. To analyze the data obtained through questionnaires and test results, students were processed using descriptive analysis with the SPSS 20 application. The results showed that the application of the problem-based learning (PBL) learning model to the learning outcomes of students in plant motion reached the final qualifications of students (Test Formative) describes 90 students (100%) who succeeded in achieving the MCC value (minimum completeness criteria). The problem-based learning model has a significant effect on the learning outcomes of class VIII students of MTs Al-Muhajirin Waihatu, this can be seen from the significant level of 0.626 with the strong category