目的 了解山东省规模牛场蓝舌病的发病和流行情况。 方法 采用血清学检测方法抽检山东省25个牛场（13个奶牛场、12个肉牛场）的738份血清样品（奶牛血清383份，肉牛血清355份）进行蓝舌病抗体检测，并测定个体阳性率和群体阳性率。 结果 25个牛场中，3个牛场存在蓝舌病抗体阳性，群体阳性率为12.00%；738份样品中，3份样品为阳性，个体阳性率为0.41%。 结论 2022年山东省规模化牛场存在蓝舌病的感染。

Objectives To understand the incidence and prevalence of blue-tongue disease in large-scale cattle farms in Shandong Province. Methods 738 serum samples including 383 cow serum and 355 beef serum from 25 cattle farms including 13 dairy farms and 12 meat cattle farms in Shandong Province were randomly selected to test the antibody against blue-tongue disease with serological detection methods. The positive rates of individual and population were measured. Results 3 out of 25 cattle farms had positive antibodies against blue tongue disease, with a population positivive rate of 12.00%. 3 of the 738 samples were positive, and the individual positive rate was 0.41%. Conclusions In 2022, there were infections of blue tongue disease in large-scale cattle farms in Shandong Province.