Disease resistance breeding is the main method to control maize diseases. The research focused on the re-sistance identification of 71 new maize inbred lines to northern corn leaf blight, gray leaf blot, head smut and gallsmut, which aims to clarify the disease resistance of different germplasm resources and provide resources for diseaseresistance breeding. The result showed that 69% of the germplasm showed moderate resistance or above to 4 diseas-es. Among which 59.2% germplasm were resistant to northern corn leaf blight, 21 were highly resistant and 21 wereresistant. 67 materials with high resistance to gray leaf spot and 1 resistant material accounted for 95.8%. Therewere 36 and 24 materials with high resistance and 24 resistant to powdery mildew, accounting for 85.9% of the iden-tified materials. Among the inbred lines, 68 germplasm showed resistance to head smut, accounting for 95.8% of thetotal identified germplasm. The results showed that 71 inbred lines with high resistance to head smut and gray leafspot were abundant.