This study aims to explore the application of GeoGebra software in improving students' mathematical communication skills. GeoGebra, as a visualization and interactive tool, is considered to be able to help students understand mathematical concepts more deeply and effectively. This literature study collects and analyzes various studies that have been conducted on the use of GeoGebra at various levels of education, from elementary school to college. The results of the study show that the use of GeoGebra can improve students' mathematical communication skills, both in written and oral form. Students who use GeoGebra tend to have an easier time describing and explaining mathematical concepts, as well as being more actively involved in discussions and problem-solving. In addition, GeoGebra also helps to increase students' motivation to learn and provide a more enjoyable and meaningful learning experience. The conclusion of this study shows that GeoGebra is an effective tool to be used in mathematics learning to improve students' mathematical communication skills.