1. A defect review apparatus having a function of capturing an image of a sample under observation and extracting an area corresponding to each defect from the image as a defect image, characterized in that the defect review apparatus comprises: an electronic optical system that images the sample under observation and outputs the acquired image as an image signal; an ADR processor that extracts the defect image; an ADC processor that automatically classifies the defects into a plurality of categories; and screen display means for displaying judgment information used to judge which category among the categories into which the ADC processor has automatically classified the defects needs to undergo manpower-based manual classification.