In order to objectively evaluate the impact of land use on the ecological environment in faulted basins, and reflect the complex relationship between people and land at a deeper level from changes in ecosystem services, based on multi-time series land use data and terrestrial vegetation net productivity (NPP) in faulted basins, the temporal and spatial variation characteristics of NPP in faulted basins are clarified, and the characteristics of landlevel changes in land use change intensity over many years is revealed. The life cycle assessment method is used to quantitatively analyze the impact of land occupation and land conversion on the net productivity of terrestrial vegetation in rocky desertification areas, and explores the ecological benefits of rocky desertification control. The results show that 1) the change of net primary productivity (NPP) in most areas of the study area was not significant between 2000 and 2015, NPP showed significant changes in a small part of the region with an upward trend as the main trend; 2) among the six land types, the change of forest land is stable, the growth trend of construction land is active and strong, and the grassland reduction trend is active and strong; 3) the difference between the potential vegetation productivity of forest land and the existing NPP gradually increases from west to east, and has a consistent spatial distribution with the reduction of forest land occupation, indicating that forest land distribution will affect the net productivity of forest land vegetation; and 4) the natural vegetation growth in the northern part of the study area is good. The forest vegetation in the rocky desertification areas of Liupanshui City, Pu’an County and Luliang County in the eastern region has a certain degree of natural degradation, and the ecological restoration effect of forest land is general; 5) 80% of land conversion types in the research area makes NPP gain. The common way to makes NPP significantly improved is to convert grassland and cultivated land into forest land; the conversion of forest land to construction land causes the most damage to NPP.