Abstract: Based on the temperature observation data of ground meteorological stations in Chengdu from 1960 to 2018, the absolute threshold method and percentage threshold method were used to define extreme temperature events. The spatial distribution and trend of temperature were analyzed and the urbanization contribution to the temperature was studied. The results showed that the temperature in Chengdu had obvious spatial difference, the average temperature in Jintang was the highest in the east, followed by Xinjin. The low temperature appeared in the northwest of Chengdu. From 1960 to 2018, the temperature showed an upward trend and the number of frost days gradually decreased, while the number of hot days gradually increased. In the past 20 years, the extreme high temperature events increased significantly, the cold day index and cold night index decreased, while warm day index and warm night index increased. The contribution rates of urbanization to the minimum temperature, cold night index and warm night index were 34.00%, 45.81% and 26.88%, respectively. The index related to the minimum temperature were more sensitive to urbanization.