Abstract:The great west to Kunlun Mountain Pass MS 8.1 earthquake in 2001 occurred in peak term year of solar activity. The magnetic storms can induce eddy current heating on the fault plane of EW or near EW strike seismogenic faults, and trigger off earthquakes in the peak term years of solar activity. Based on statistics, among the MS ≥ 8.0 great earthquakes in China and Mongolia, most events which occured on the fault with strike of EW or near EW are in the peak term of solar activity; but for others which occurred on the fault with strike of NS or near NS are predoninately in the valley term of solar activity. The similar result is also obtained for MS ≥ 7.5 earthquakes.