 Grasslands cover over three-quarters of the Qinghai Tibetan Plateau, QTP, playing a crucial role in regulating its ecological functions. Climate change and human interference have had a significant impact on these grasslands, making it difficult to differentiate between the two factors. This study used statistical analysis, remote sensing data, and an ecosystem process model to determine the relative contributions of climate and human activities to vegetation on the QTP. Temperature, precipitation, and livestock grazing patterns varied significantly between pre- and post-2000 periods. During warmer periods, increased temperatures limited vegetation growth in dry step areas while decreased precipitation inhibited vegetation growth in wet meadows. Livestock grazing also had a greater effect on vegetation growth in dry steps during warm periods and in wet meadows during dry periods. Additionally, the effects of climate and human activities differed depending on location and targeted time period. Areas dominated by human activities were smaller than those dominated by climate. Grazing had a larger effect on vegetation growth in areas where climate was less favorable. This article was authored by Ku Huang, Yang Jianzhuang, Huang Taozhu, and others. We are article.tv, links in the description below.