Abstract: Based on the "top-down" energy inventory method, the anthropogenic heat emissions and their temporal and spatial distribution characteristics of Changsha Zhuzhou Xiangtan Urban Agglomeration in 2017 were studied. At the same time, the weather research and forecasting (WRF) model and its coupled UCM are used to carry out numerical simulation experiments in summer and winter respectively, and the seasonal differences of artificial heat emission warming effects in different types of built-up areas are quantitatively analyzed. The results show that: (1) in 2017, the total anthropogenic heat emission of Changsha Zhuzhou Xiangtan was 3.49×1017J/a, and the average anthropogenic heat emission intensity was 14.22 w/m2. The contribution rates of industry, construction, transportation and metabolism of human new towns to anthropogenic heat were 48.15%, 40%, 11.3% and 0.55%, respectively.(2) With the introduction of artificial heat, the average temperature of the main urban areas in summer and winter increased by about 0.7℃ and 1.5℃ respectively, and the effect of increasing temperature in winter was twice that in summer.(3) The effect of artificial heat emission in different density zones is different.In general, industrial / commercial area > high density residential area > low density residential area.