Abstract: Based on a result that the variation of SSTA between the adjcent month is small, an one-month numerical predication of June, 1996 is calculated by using CCM1/NCAR climate model. In the prediction, the initial value is taken from the objective analy sics of T64 grid system of China National Meteorological Center for 00Z the first of June, 1996. The SST distribution of June, 1996 is computed from June climate SST adding the SS-TA of May, 1996. For comparison, an one-month prediction using the climate June SST is also calculated. It is shown that the prediction results of changed SST are greatly better than that using the climate SST. In the formercase, the predicted deviation of the 500 hPa geopo tential height in Norther Hemisphere, the zonal wind velocity at 850 hP a, the predicted devation of surface air temperature and the predicten percentage of rainf all deviation are quite same as that of observed.