Abstract: Kuburagia ensigallis Tsai et Tang lives on the leaflets of Rhus punjatensis Var．Sinica Rehd．And Wils．And Rhus potannini Maxim．Galls caused by the aphid are one of the fine varieties of gall nut in China．The aphid distributes in the southwestern． Central and southern regions of China．In this study，4 species of winter hosts and the generations and life cycle of the aphid were determined．According to the generations and quantity of the aphid in gall and the formation and growth process of gall nuts，the stage in gall was divided into 4 phases．The occourrence time of all generations and the appearance and mature time of gall nuts are earlier at lower elevations than at higher elevations． The growth and development of gall nuts and the aphid in gall are faster at lower elevations than at higher elevations．A regression analysis was made of the emergence of spring-form winged viviparous female and the observed value of microclimate in forest．For the emergence of the migrant，the initial temperature is 7.1℃ and relative humidity is<90％．The productions of gall nuts are relatively high in environments where the temperature in spring is relatively high，the humidity is relatively low and the natural distribution quantity of winter hosts is large．This species of aphid has many species of winter hosts that differ from one another in ecology．This is an important reason for the aphid to distribute widely．The production technique of this kind of gall nut may be summarized as“properly choicing sited，planting trees for protection of moss，and reserving seed Stock to breed”，among which the choice of natural environments with a conceiltrated distribution of winter hosts as the breeding sites of the aphid is the key to the production of gall nuts．