Grassland degradation in China was monitored using remote sensing from 1982 to 2010. The study analyzed factors driving degradation by looking at net primary productivity (NPP) and grass coverage. Results showed that 22.7% of China's grassland area degraded during this period. Climate change and human activities both played a significant role in grassland degradation, with human activities being the main driver. However, the impact of climate change varied across regions. Warm-dry climates were harmful to grass growth, but restoration efforts helped improve grassland conditions. This study's methods can be applied to assess grassland degradation in other regions.