Based on the distribution of hydrological stations, the study area was divided into 98sections controlled by hydrological stations and then, 234 soil erosion units were determined according to the different soil erosion areas. The variation of sediment yield, sediment reduction rate, and the area variation and spatial distribution were analyzed for different degrees of sediment yield in the different soil erosion areas in different control periods.The control standards for the different soil erosion areas on the Loess Plateau in the future 20years were put forwarded:Soil loss is controlled at 3.6×10⁸t and soil erosion modulus is less than 1300t/(km²·a). For the different soil erosion are-as, soil erosion modulus is 3000t/(km²·a) in loess Mao hilly and gully region,2000t/(km²·a) in loess Liang hilly and gully region, 2000t/(km²·a) in arid loess hilly and gully region, 1000t/(km²·a)in loess gentle slope hilly and gully region, 1000t/(km²·a) in wind and sand loess hilly and gully region, 1000t/(km²·a) in lo-ess piedmont hilly and gully region, 300t/(km²·a) in forest loess hilly and gully region, 1500t/(km²·a) in loess tableland hilly and gully region, 3000t/(km²·a) in loess residual plateau hilly and gully region, 500t/(km²·a) in loess terraces region, 500t/(km²·a) in wind and sand grassland region, and 100t/(km²·a) in plateau mountain and rock region.The key control areas in the future 20years are loess Mao hillyand gully region (2.20×10⁴km²), arid loess hilly and gully region(1.50×10⁴km²), loess tableland hilly and gully region(8600km²), and loess Liang hilly and gully region(4600km²).