This study aims to improve students' mathematical literacy skills through the Realistic Mathematics Education (RME) learning model. The underlying issue of this research is the low level of students' mathematical literacy, particularly in the aspects of mathematical modeling, concept application, and result interpretation. This research is an action research conducted over two cycles. The subjects of this study were students of class VIII/3 of SMP Negeri 1 Banda Aceh. To collect research data, an instrument in the form of a self-evaluation test on mathematical literacy was used. Data analysis to measure the improvement of students' mathematical literacy skills was carried out using the N-Gain Score test. The results of the N-Gain analysis showed a significant increase in students' mathematical literacy skills, from a very low category (per-cycle) to a moderate category in cycle I, with a consistent increase in each cycle, reaching a high category in cycle II. These findings indicate that RME is effective in enhancing students' mathematical literacy skills, aligning with the goals of mathematics education that focus on real-life applications.