Abstract: Stereoscopic motion in depth is a critical factor affecting visual perception. This paper utilized electroencephalogram (EEG) technique to investigate the effects of motion in depth. Two types of velocities (comfort and discomfort) are selected for the EEG experiment based on subjective results. The squared biserial correlation coefficient r² is computed. The classification accuracies of different brain areas are obtained by SVM after CSP. The results prove that the EEG sub-band α and β in partial area are more active in stimuli period, and the most discriminative waveband is concentrated on α band is the parietal area for two types of motion-in-depth. The higher accuracy on Dorsal pathways shows that it is feasible to identify two labels caused by motion in depth automatically using EEG.