The Use of Investigational Group Strategies in SKI Learning To improve Student Achievement of Class IV MIN 2 Gunungkidul Academic Year 2019/2020. Implementation of the 2013 Curriculum for Islamic Education and Arabic at the MI level in Gunungkidul. The number of students whose learning achievement is lacking in learning is due to one of the reasons for the learning process so far not involving students actively, so that student achievement is far from expected, therefore this study aims to determine whether there is an increase in student achievement in learning SKI through the Investigational Group Strategy. for Class IV Students of MIN 2 Gunungkidul Academic Year 2019/2020 This research is a Classroom Action Research which consists of two cycles and involves four components, namely: Planning (plan), Action (action), Observation (observation), Reflection (reflection). The subjects in this study were students of Class IV MIN 2 Gunungkidul in the 2019/2020 academic year, totaling 14 students. Methods of data collection using observation and documentation. The collected data were analyzed using descriptive statistical methods. From the results of the study, it was found that the Investigational Group method in Jurisprudence learning was able to improve the learning achievement of students in Class 2 Gunungkidul in the 2019/2020 academic year. In the first cycle the students' learning achievement in Jurisprudence increased after the implementation of the Investigational Group Strategy. This can be seen from the percentage of classical learning completeness, namely in the first cycle of 57%, and in the second cycle of 83.78%. The results of these studies can be used as reference material for us to improve student learning achievement.