在甘肃临夏县调查发现，春季油菜蚤跳甲的越冬成虫可潜藏在杨树的老翘皮下、地边土缝及田间表土中蛰伏。田间为害春油菜幼苗的成虫量随当时的气温而变化。田间成虫数量的调查结果往往不能代表实际的危害状况。通过对被害苗的详细调查归类，本文提出了油菜蚤跳甲为害的分级标准，建议以被害指数来表示该虫的危害程度，以便在综合防治中能准确的表示虫情。 In Linxia County, Gansu Province, the survey found that winter wintering beetle flea overwintering adult can be hidden in the poplar old Alice skin, ground seams and field dormant in the field. The amount of adults in the field rapeseed seedlings varies with the prevailing temperature. The results of surveys of the number of adults in the field often do not represent the actual state of harm. Through the detailed investigation and classification of the victim seedlings, this paper puts forward the grading standard of the flea beetle damage to the rape, suggesting that the damage index should be used to indicate the damage degree of the pest, so that the worm can be accurately represented in the comprehensive prevention and control.