The precipitation departure in the growing season (April to September) of crops over Northeast China was analyzed with the rainfall data of 52 stations from 1951 to 2000 over Northeast China. The results show that there was a decreasing trend generally in precipitation with the periods being about 3-7, 12 and 30 years, with drought years more than flooding years in the past 50 years. According to the rainfall anomaly in growing season, Northeast China can be divided into several abnormal areas: a dry trend the middle, southern and eastern parts; and relatively frequent floods/droughts in the western. Considering the decreasing precipitation, it is suggested to adopt dry-farming and water-saving agriculture.