Abstract: In this paper,the relation of the subtropical high over the North Western Pacific,the equatorial covergence zone,the anomaly of SST departure of the North Pacific and formation of an E1 Nino event to violent eruption of volcanoes in recent thirty four years are studied.It has been found that the violent volcano eruption has important effect to EL Nino event,and EL Nino event appeared in the sixteenth month to twenty eighth month after the violently volcano eruption.