Abstract: In order to find out the main cause of precipitation anomalies, put forward reasonable preventive measures and serve for agricultural production and local economy. The author analyzed the statistical characteristics of the year data in which severe drought occurred, using Puyang historical data of precipitation and climate monitoring data from national climate center. The results showed that: (1) the general atmospheric circulation in Europe and Asia of the northern hemisphere was abnormal in the years, when the heavy drought appeared in early summer in Puyang. Polar vortex was weak, northly and west. East Asia major through was east and deeper than climatology. West Pacific subtropical high was weak and east and south. (2) The abnormal variation of sunspot average of relatives had correspondence with the heavy drought in early summer in Puyang. (3) There were some correlation between the heavy drought in early summer in Puyang and El Nino and La Nina, caused by the abnormity of the east Pacific SST. (4) The characteristics of large scale circulation situation showed good persistence. The former climate background could afford indication to later climatic prediction. Heavy drought occurred frequently and was bad for autumn harvest crops to grow. So people should take some measures to reduce the loss.