Abstract: The analysisis completed for the relationship between sea ice of the Arctic and Antarctic, and the index of Southern Oscillation variation on the temporal scale of month, season and year in this paper. The negative correlation between seaice of the Arctic and the index of Southern Oscillation, and the positive correlation between seaice of the Antarctic and the index of Southern Oscillation were found. The variation of seaice of Antarctic Pacific seems to more important on the influence to atmosphere. Their nonlinear relatio nship represent smore stronger then the linear relationship. The relationship between seaice of the Arctic and Antarctic in the early stage, and the index of Southern Oscillation exit speriod phenomenon. The maximum correlation is used to build the model for forecasting the at mosphere variation on the seaice of the Arctic and Antarctic. The ex plained variance can be surpass 0.90. The periodic variation and the common factors in monthly series are discussed in this paper.