To investigate the effect of wind disaster lodging on spring maize yield and the index of wind disaster,the data was collected from the stage seeding experiment of maize in different altitudes in Zhongfang County from 2017 to 2019. The experiments suffered 14 gale process above level 5 especially 7 severe convection weather process that the maximum wind speed was above 12.0 m/s. The results were together analyzed with the wind disaster lodging simulation experiment conducted in 2018. We can conclude that wind speed was the key external factor for maize lodging, the index of wind disaster lodging of Zhongdan 808 and Xianyu 1171 were about 13.0-14.0 m/s, varieties vary slightly；lower ear height, better elasticity of the stem, and more strong bending resistance were the main reason for the strong lodging resistance of Xianyu 1171; with the increase of plant height and ear height, the index of wind disaster decreased slightly. The effect of lodging on yield in the middle and late grouting was mainly manifested in the decrease of 100-grain weight, the time from lodging to mature was longer, the loss of yield and 100-grain weight was greater. Xianyu 1171 and zhongdan 808 had no significant yield loss due to stem bending and lodging within 14 days before maturity, but lodging occured 25 days and 33 days before maturity, yield loss was more than 10% and 20% respectively.