Abstract: The aim of this study was to clarify the relationship between the disaster weather and maize yield during the growing season from June to September. The disaster area of crops, total production of summer maize, single yield and planting area from 2001 to 2012 were statistically analyzed, and using 18 stations ground climatic data of different latitude to find the change law of different meteorological factors in the growing seasons from June to September. The results showed that, the main disaster types were drought, water logging and wind hazard in recent ten years; the main reason for maize total yield growth was the increasing of planting area, and single yield of maize was maintained at 5550 kg/hm²; during the maize growing season, especially for filling stage, rainy sparse sunlight and high temperature and drought were the main causes for the per unit area yield decrease; maize lodging and yield decrease were mainly caused by the gale damage. Strengthening study on the capacity of maize resistance to natural disasters is the important measure for increasing the per unit area yield of maize and improving its production capacity.