Abstract: Objective This study was designed to understand the reasons and epidemiological characteristics for brucellosis outbreak in local areas．And therefore to provide scientific evidence for prevention and control of this disease in the future．Methods The cluster sampling and seroepidemiological method were adopted for investigation of outbreak of the disease．Resuits The Tube Agglutination Tlest of Brucella for 87 sheep showed an infection rate of 27.6％，for 82 livestock owners 33.0％．While for other people 0.2％．Conclusion ThiS outbreak of brucellosis among people maybe resulted from indirect transmission of brucella through dust in the air，which was contaminated by infectious sheep．