Abstract: Three numerical simulations which integrated more than 50 days by the OSU AGCM are carried out to show the effects of changes in soil moisture and surface albedo on the climate of north part of China (30-46°N,90-120°E).Results of the simulation indicate that dry moisture have different effects on non-monsoonal area in the west of china and the monsoonal are in the east of China. High albedo produces a decrease in rainfall.It is pointed out that effect of surface process is one of possible major reason of spring-to-summer continuous drought which happen in North China frequently.