In the Loess Plateau, restoring vegetation(grass, shrub, or tree), as the core of the ecological construction, directly caused the changes of the land use patterns. Based on the land use data of 1985, 1995, 2000 and 2008, using GIS and statistical methods, the authors analyzed the spatial-temporal changes of land use of Wuding River basin located in the middle reach of the Yellow River. The results showed that grassland had always been the dominant landscape, and recovering forest and grassland were the main form of ecological restoration through combating desertification and restoring vegetation. With the implementation of the grain for green project, forest and grassland expanded significantly, while the farmland area had been declining. Around 1995, the mutual transformation between land use types was more obvious, and the land-use comprehensive dynamic change rate was reached maximum level. Droven by the vegetation restoring, the gravity center of land use types moved significantly. The main features of the migration was that the core of farmland moved towards east of the downstream area, while the core of forest and grassland moved northwest on the whole.