According to relevant data, there are epidemic cases in Jingning, Gansu. Two new cases of asymptomatic infection in COVID-19 were reported in Jingning County, Gansu Province. They passed through the Kongtong District on August 20th, intending to return to Zhengzhou, Henan. The nucleic acid test results of Li and Zhang were positive, and they were diagnosed as asymptomatic infection on August 2 1 day. Kongtong District, Jingning, Gansu Province has started emergency response at the first time, and quickly carried out traceability, isolation control and nucleic acid screening. At present, two asymptomatic infected people have been observed in isolation medicine in designated hospitals.