[Objective] The present study evaluated the ecological effects of land use change and discussed the characteristics of land use dynamic evolution in the Nansi Lake basin in order to provide a reference for rational development and utilization of land resources and protection of ecosystem.[Methods] Based on the land use data of Nansi Lake basin during 2000-2015, we calculated and analyzed the ecosystem service value and its dynamic characteristics using the ecosystem service value accounting model and the CLUE-S model.[Results] From 2000 to 2015, the area of cultivated land, grassland and unused land in the Nansi Lake basin decreased, while the area of woodland, the waters/wetland, and urban-rural construction land increased. The overall ecosystem service value increased by 910 million yuan, but the ecological function of grain production, gas regulation and soil conservation decreased by 0.85%, 0.85% and 1.29%, respectively. Ecological problem still exists in this area, such as uneven distribution of ecosystem service value and the larger area of the ecological impairment areas than the ecological value-added zones. In 2030, the value of ecosystem services in the basin will increase slightly, while the ecological functions such as grain production, gas regulation and conservation of soil will continue to decrease. The area of extremely low ecological value will expand from city-centered to surrounding area, and the ecological value-added zone will reduce.[Conclusion] Although the value of ecosystem services is increasing, the distribution of ecological values is unbalanced, and the function of ecological services is unstable. Therefore, it is necessary to take effective measures to control the conversion of land use types and balance the ecological environment in this basin.