Abstract: According to the data analyses for many years it is clear that the temperature anomalies in Eastern China are closely related to El Nino. The surface temperature in Northeastern China and the neighbouring region is lower than normal buring summer in most of the El Nino years,but it is higher than normal during summer in most of the inverse El Nino years. During the winter associated with El Nino,there are positive anomalies of the temperature in Eastern China,but negative anomalies of the temperature associated with the inverse El Nino. The analyses for the general circulation show that the abovementioned surface temperature anomalies in Eastern China resulted from the anomalous atmospheric circulation causeb by ElNino.There are obvious negative temperature anomalies in Eastern China and obvious positive pressure,anomalies in Mongolia during wintertime prior to the occurrence of El Nino. This means the sustained anomalies of the surface temperature in Eastern China in the wintertime are elosely related to the occurrence of El Nino and the frequent activities of the stronger troughs (cold waves) in East Asia during the wintertime are important mechanism to cause El Nino event.