Abstract: The heat elements variation characteristics of Wulanchabu city from 1959 to 2010 were analyzed. The results show that compared with 60 time, the average temperature rise of 1.2 tol.9 degree in the recent 10 years, the maximum temperatures in 10 banners were appeared in 2005 and 2010, the first day of the temperature stability through10 degrees advanced 2 to 5 clays, the last day is delayed for 4 to 7 days： the active accumulated temperature more than 10 degree has increased 200 to 300 degree; the latest frost day advance 4 to 15 days, the first frost day delayed for 7 to 15 days; the frost-free period was extended 10 to 30 days.