Abstract: This paper introduces a new technology Independent Component Analysis（ICA），including its basic concepts，principles，and some representative algorithms，such as Fast Independent Component Analysis（FICA） and Kernel Independent Component Analysis（KICA）.The method of removing EOG artifact from EEG Data was proposed.Simulation results show that KICA algorithm can remove EOG artifact from the EEG signal better，and it is also more accurate and robust than FICA.