目的 探讨河北省鼠疫自然疫源地鼠疫流行的静息期，为河北省鼠疫防治工作提供依据。方法 1981-2013年在河北省鼠疫自然疫源地，采用夹日法捕获长爪沙鼠，采用一日弓形夹法捕获达乌尔黄鼠进行调查，计算宿主动物密度；查阅鼠疫历史资料，确定流行年份。结果 河北省鼠疫自然疫源地以2002年宿主动物密度最高，为4.75只/hm²。河北省鼠疫自然疫源地在1971-2015年间共发生4次动物鼠疫流行，涉及8个流行年份，即1971、1972、1984、1994、1995、2002、2003和2005年，平均约10年流行一次。结论 河北省鼠疫自然疫源地动物鼠疫流行静息期客观存在，约10年。

Objective To study the epidemic intermittent period of plague natural foci which wound play an important role in the prevention and control of plague in Hebei province. Methods Meriones unguiculatus were caught by diurnal method and Citellus dauricus were investigated by the one-day bow clip capture from 1981 to 2013 in the natural foci of plague in Hebei province. The density of host animal plague was calculated. Historical data was consulted and the epidemic year was determined. Results The plague was found in 1971 in Hebei province. There were 4 animal plague epidemics from 1971 to 2015. There were 8 epidemic years, namely, 1971, 1972, 1984, 1994, 1995, 2002, 2003, and 2005. The average gap was 10 years. Conclusion The epidemic period of about 10 years of plague exists in the natural focus of the plague of Hebei province.