Application of Grey Incidence Analysis to Connection Between Human Errors and Root Cause

By introducing grey incidence analysis, the relatively important impact of root cause upon human errors was researched in the paper. On the basis of WANO statistic data and grey incidence analysis, lack of alternant examine, bad basic operation, short of theoretical knowledge, relaxation of organization and management and deficiency of regulations are the important influence of root cause on human errors. Finally， the question to reduce human errors was discussed.