By means of the daily temperature during the period of 1961 to 2008 in Inner Mongolia and the mathematics statistics method, making reference to correlative regulation, the variation characteristics of various elements in heating periods are analyzed and the prediction model of the first day, last day and energy needs in a heating period is devised and tested. It is concluded that：(1) With climate warming, the dates of the first day of the heating period were delayed, and the dates of the last day of the heating period advanced; the heating period became shorter. It indicates the warmer and shorter winter in Inner Mongolia. (2) The variation of the elements in heating periods is closely related to the latitude across Inner Mongolia: the higher the latitude, the shorter the heating period, the lower the energy consumption, and the greater the emission reduction potential. (3) With the climate warming, because the shorter heating period and reduced energy needs and energy consumption, the emission of the greenhouse gases such as CO2, CH4 and SO2 was reduced. (4) The variations of the elements in heating period were also closely related to temperature change.