Soil erosion is a major environmental concern that leads to land degradation, reduced agricultural productivity, and water pollution. One of the most effective and sustainable strategies for controlling soil erosion is the use of cover crops. These non-cash crops, planted during fallow periods or between main crop cycles, help protect the soil by improving its structure, increasing organic matter, reducing runoff, and minimizing the impact of raindrops and wind. This article explores the mechanisms through which cover crops prevent soil erosion, highlights their environmental and agricultural benefits, and discusses best practices for their implementation.