The invention relates to a method for identifying the phenotype of indoor wheat dwarf virus resistance of triticeae crops and application, and belongs to the field of agricultural biological variety resources resistance identification. The identifying method disclosed by the invention comprises the following steps: transmitting the virus out from a living body virus source plant by utilizing a virus transmitting amboceptor, namely, Psammotettix striatus L, using the obtained amboceptor which carries the WDV (Wheat Dwarf Virus) as to-be-identified material for group inoculating, then separating seedlings, and transplanting the separated seedlings which are used for the identification of the indoor disease resistance of the WDV; setting the disease grading standards to be level 0, level 1, level 2, level 3, level 4 and level 5 according to the resistance identified plant phenotypes, wherein the level 0 is immune, namely, disease-free, the level 1 is high-resistant, the level 2 is disease-resistant, the level 3 is medium susceptible, the level 4 is susceptible to disease and the level 5 is high-susceptible. The resistance resource obtained through the identification can be further used for variety hybridizing and breeding, and can be used for preventing and controlling the wheat dwarf virus through field demonstration and popularization; the disease susceptible plants can also be used for researching the mechanisms, such as pathogenicity and the interaction of the amboceptor and a host.