Abstract: Based on daily temperature and precipitation data of seven meteorological monitoring stations between 1981 and2015 by statistical analysis method of Tongliao city climate characteristics, combined with the growth characteristics of corn,effects of Tongliao city of climatic characteristics on the growth of maize were analyzed. The results showed that the boundary temperature of the Tongliao city was more suitable for the growth of late maturing maize, but less precipitation and the annual change rate was big, resulting in the drought had become the major limiting factor during the maize growing period.