Abstract: Comprehensive evaluation method was more and more significant for crop breeding，agriculture production decision，evaluation of quality of agricultural products in the field of agricultural engineering，and it has become a hot spot in the research field of agricultural engineering.Several main evaluation methods were introduced in detail，including fuzzy comprehensive evaluation，gray correlation degree analysis and DTOPSIS method.Implementing steps of each method was briefly described.Application research progress at home and abroad was reviewed.Their respective advantages and disadvantages were discussed.Finally，research development trend in this field was prospected.