Rain splash erosion is the first step in soil erosion, where raindrops dislodge soil particles. This study looked at different types of soil in China to see how they respond to rain splash. They found that black soil from Heilongjiang had the least erosion because it had strong soil structure. Loess soil from Inner Mongolia had the most erosion due to its sandy composition. Red and purple soils from Hubei and Guangdong had medium erosion because their structure was easily disrupted. The study also found that soil crust forms on the surface and subsurface, affecting erosion rates. Overall, soil properties like aggregate content and stability play a big role in how soil responds to rain splash erosion.