Abstract: s: In order to comprehensively grasp the climate change characteristics of soil temperature in the root layer of Hongsibao wine grape in winter, The variation regularity was analyzed by using daily average soil temperature of 0, 10, 15, 20 and 40 cm in winter(December to next February) from 1961 to 2015 of Tong Xin weather station. The results showed that: soil temperature in the root layer of wine grape in winter increased with the increase of depth; the daily average soil temperature variation in 0～40cm soil layers in winter of the 55 years had the same trend, first decreasing and then increasing, with the lowest value ranging from -7.3 ℃ to -3.4 ℃ and the appearance time is between January 13 and January 25. The annual change of soil temperature in winter was significantly increasing in the 55 years. In 0 ~ 20 centimeters, climate change trend rate of each layer is between 0.432 ~ 0.604 ℃ / 10 a , The soil temperature of 0cm, 5cm, 10cm and 20cm respectively had a mutation in 1989, 1989, 1989 and 1984 , all of them were cold periods before mutation, warm after mutation. The interdecadal variability of soil temperature in winter was mainly heated, but the 2010s is a declining trend relative to the 2000s.