The identification of schizophrenia and early psychosis depends heavily on the subjective judgment of symptomatology， and there is a lack of biomarkers that can be used in clinic. Mismatch negativity is generated by the brain's automatic response to the change of auditory stimulation beyond a specific threshold， which has a clear and prominent defect in chronic schizophrenia， but the study of its related indicators in early psychosis is still in the early stage. This paper aims to summarize the application progress of related indicators of auditory mismatch negativity in the recognition of different stages of schizophrenia，and provide references for further research.