This paper uses the method of gray relation analysis to find out the change point for time series of meteorological factors and energy consumption in Beijing from 1980 to 2010.The meteorological factors include average temperature,precipitation and sunshine hour\soutet al.It is shown that the change point of Beijing's energy consumption series occurs in 1993 and 1997,while the change points of the meteorological factors occurs in period from 1993 to 2000.Especially,the change point of average temperature,sunshine hour and energy consumption sequences occur in the same period exactly.Furthermore,meteorological factors have the extremely close relationship with energy consumption in Beijing.In a word,according to the local climate conditions,the government could arrange the strategy of energy resource development accurately.