By using Chinese station daily observation data,the climate change features of the farming-grazing zone in northern China in the past 56 years(1951-2006) have been analyzed.It is concluded that the annual precipitation presents obvious interannual and interdecadal variations in the zone with a remarkable decrease trend in the recent 10 years.The annual mean temperature has little change before 1990s,but becomes warmer persistently after 1987,which is consistent with the change trends in the globe and China.The changes of rainfall and temperature show the obvious seasonal and regional differences.Based on the above analyses,the future projection during 2001-2030 has been undertaken by the nested GCM(global coupled model) and RCM(regional climate model) under the IPCC SRES A2 emission scenario.Relative to the model climate field(1961-1990),the possible change trends of rainfall and temperature in the zone in future 30 years have also been analyzed.The results indicate that the air surface temperature will keep on increasing in the whole region with annual mean increasing 0.3 ℃.Due to the minimum temperature increases larger than the maximum temperature,the daily range of temperature is expected to decrease in the future.Precipitation is expected to increase with less extent.Drought threaten in the up-reach of Huanghe River still might be very heavy in the future.