Abstract: Based on the monthly mean air temperature and shallow ground temperature data at the depth of 0~20 cm from 1961 to 2017 in the Huaihe River Source, the spatial and temporal variation characteristics of 0~20 cm ground temperature in the Huaihe River Source and its response to the global warming hiatus in the past 57 years are analyzed by using linear regression and power spectrum analysis methods. The results show that: (1) During 1961—2007, the annual mean ground temperature of each layer in the Huaihe River Source shows a significant increasing trend. (2) Significant periodicity of 2.29 a is detected in annual mean ground temperature of each layer over the past 57 years, with stronger signals in Xinyang, Xixian, Xinxian, Huaibin and Shangcheng. However, no significant periodic signals are detected in the rest stations. (3) The annual mean ground temperature of each layer at the Huaihe River Source shows a spatial pattern of higher temperatures in the east and southwest, and lower in the north and northwest. The largest warming trend of annual ground temperature is found in the southwestern part of the study area, while the rate in the central region is the smallest. (4) From 1998 to 2012, the ground temperature of each layer in the Huaihe River Source is extremely sensitive to the global warming hiatus.