Abstract: In this paper,by using the techniques for IAP-AGCM climate model,power spectral analysis and bandpass filter numerical simulations of the effects of seasonal northward jumping of subtropical high during May to July in Norther Hemisphere.It is shown that the SST anomaly of equatorial mid Pacific、western Pacific、Indian ocean and northern polar ice anomaly there are influenced by it,with greater degree on seasonal jumping of subtropical high and the influence of SST is most evident. And the jumping sources are confirmed in Pacific and Indian Oceans. Its influence process is possibly realized by arousing low frequency wave.