Abstract: The climate changes warmly has become the climatic change the main characteristic. Through to Ju county from from 1951 to 2005 55 year observed data statistical analysis, finally indicated that, after before the Ju county 70's and the 80's have had the very big change, the warm winter phenomenon is day by day obvious, the year precipitation assumed the drop tendency, agricultural meteorology disaster and so on drought, flooding, freeze injury, hail, continual rain, gale, tornado, plant disease has had the corresponding change, mainly displayed at disaster and so on drought, gale, hail, plant disease increases, disaster and so on flooding, frost, dry hot blast, continual rain, freeze injury reduces. In view of the climatic change all sorts of influences which produces to the agricultural meteorology disaster, needs the people in to take measures against natural disasters in the disaster reduction to formulate the corresponding measure, through the implementation afforestation, plants the grass in the barren hill, does on large scale the farmland water conservancy construction, positively develops the weather modification work, does on large scale the pollution the government, grasps the agricultural meteorology the automatic observation station construction, completes work and so on weather forecast meteorological service, achieved seeks victory minimizes losses, the safeguard ecological environment sec.