Based on the idea of data envelopment analysis(DEA) cross-evaluation for reference, this paper processes
the quantitative data using cross-evaluation method(CEM) on the basis of the concept of “average cross-efficiency
evaluation” , “minimum cross-efficiency evaluation” , “maximum cross-efficiency evaluation” . CEM can work as the index
of fuzzy comprehensive evaluation for second evaluation. Based on cross-evaluation, fuzzy comprehensive evaluation model
in environmental uncertainty is also constructed to reflect the reality system more objectively and comprehensively.