Northern corn leaf blight（NCLB） is one of the main diseases in the corn production. Annual loss rate is about 8%. The disease can lead to a large reduction of corn production. In recent years, with the widespread spread of susceptible cultivars, the large pathogenic base of the disease after straw returning to the fields and the favorable climatic conditions, the risk of outbreak and epidemic often exists in the spring corn producing areas in northeast China. In this paper, the prevention and control technology of corn macular disease in Jilin Province in recent years was briefly summarized, in order to provide technical support for the comprehensive prevention and control of corn macular disease and the integrated prevention and control of corn diseases and insect pests in the middle and late stage.