本文通过对大兴安岭余脉北坡７０～９０ 年代鼠疫动物病调查资料的回顾分析，发现该地区啮齿动物隶属５ 科１１ 属１７ 种。达乌尔黄鼠为主要优势种，其次是西伯利亚早獭和布氏田鼠。鼠体寄生蚤３ 科７ 属１１ 种，黄鼠的主要寄生蚤为方形黄鼠蚤松江亚种，其次为二齿新蚤和阿巴盖新蚤。鼠疫细菌学和血清学检验历年来未发现阳性材料，因此认为该地区存在鼠疫疫源性的可能性很小。但也不能放松警惕，应密切注意鼠情、疫情 Based on a review of survey data on plague animals in the northern slope of the Greater Xing’an Mountains in the 1970s and 1990s, 17 rodents belonging to 11 genera of 5 families were found. Daurian ground squirrel is the dominant species, followed by Siberian salamander and Brandt’s vole. There were 11 species belonging to 7 genera and 3 families in the parasitism flea. The main parasitic fleas of the yellow rat were subfamilies of T. gonorrhoeae and Songjiang subfamily, followed by Newborn barks and Ababa new fleas. Plague bacteriology and serological tests have not found positive materials over the years, so that there is a plague fiji epidemic in the region is unlikely. But you can not relax your vigilance. You should pay close attention to the rat and the outbreak