Based on the daily maximum temperature data of 165 stations in Hebe i Province, Beijing, and Tianjin from 1961 to 2007 (142 stations in Hebei, 23 st ations in Beijing, Tianjin), and by using the linear trend analysis, MK sudde n change test, wavelet analysis, correlation analysis, ttest and ot her methods, the characteristics of the temporal and spatial distribution of hig h temperatures over BeijingTianjinHebei region during recent 47 years are in vestigated. The interdecadal change and largescale circulation features of h igh temperatures are studied. The results show that: (1) High temperatures genera lly happened in June and July over BeijingTianjinHebei region, and 90 percen t of high temperatures above 37℃ and above 40℃ occurred at this period.(2) High temperatures showed a negative correlation with precipitation at the same time over BeijingTianjinHebei region, more high temperatures in the drought years, less in the wet years. (3) In the years with more or less hig htemperature days, the Northern Hemisphere circulation at 500 hPa had obvious difference. Such differences existed not only in the same period, but also had s ignificant differences in early circulation. The noticeable differences of early circulation provided a basis to predict the emergence of high temperatures.