The objective of this study is to assess how the Realistic Mathematics Education (RME) method affects the mathematics learning outcomes of sixth-grade students at SD Negeri 015/XI Lawang Agung, Pondok Tinggi. The study used a quantitative approach with a quasi-experimental design, dividing the sixth-grade students at SD Negeri 015/XI Lawang Agung into two groups: a control group that learned through conventional methods and an experimental group that used the RME method. To measure the students' mathematics learning outcomes, a test was used as an instrument. The results of the research revealed that the RME method significantly improves the students' mathematics learning outcomes when compared to conventional methods. Therefore, it is suggested that mathematics teachers at SD Negeri 015/XI Lawang Agung, as well as other schools, should consider implementing the RME method in teaching mathematics to enhance student learning outcomes.