[目的]通过对海晏县人间布鲁氏菌病的调查,摸清布鲁氏菌病在该地区的流行情况,为制定相应的控制措施奠定基础。[方法]依照布鲁氏菌素皮内变态反应阳性和《布鲁氏菌病诊断标准及处理原则》(GB15988-1995)确定感染与患病。[结果]共调查504人,感染者42人,感染率8.33%,患病者18人,患病率3.57%。[结论]布鲁氏菌病在青海省海晏县人间存在一定的流行,传染源未能彻底净化,仍有患病。为保证人民群众的身体健康,应在该地区采取必要措施对该病加以控制。 [Objective] To investigate the epidemic of brucellosis in the area by investigating the human brucellosis in Haiyan County and lay the foundation for the corresponding control measures. [Method] According to the brucellin intradermal allergy positive and the “Brucellosis diagnostic criteria and principles” (GB15988-1995) to determine the infection and illness. [Results] A total of 504 people were surveyed, 42 people were infected, the infection rate was 8.33%, 18 people were sick, the prevalence was 3.57%. [Conclusion] There is a certain epidemic of brucellosis in Haiyan County, Qinghai Province. The source of infection is not completely purified and there is still illness. To ensure the health of the people, the necessary measures should be taken in the area to control the disease.