Trichoderma species are widely used as a plant growth promoter and as a promising antagonistic fungal agent against various soil-borne phytopathogens.The development of a novel and rational biocontrol evaluation model is important to identify potential Trichoderma spp.with high biocontrol activity.In this study, we assayed 15 biocontrol factors with nine Trichoderma strains to identify the important key factors responsible for the biocontrol activity of Trichoderma.