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The correlation study on electroencephalograph (EEG) change under high gravity acceleration and the action of different methods which simulate biological effects induced by high gravity acceleration has an important significance in aviation medicine field. This paper comprehensively introduces EEG change characteristics under centrifuge +Gz acceleration, lower body negative pressure, hypoxia of different degrees, temporary loss of consciousness, and the associations among them. Domestic and foreign scholars have obtained certain achievements in the EEG change rules, yet the research depth is not enough in the quantitative analysis of EEG and the EEG precursor warning for the transient loss of consciousness caused by +Gz acceleration. This paper provides important reference for the characteristic study of EEG change under high gravity acceleration environment, and has practical significance in the EEG warns for the loss of consciousness caused by high gravity acceleration.