Abstract: Under the background of climate change in recent years, in order to study the feasibility of planting summer peanut after winter wheat in Luxi area, data of summer sowing groundnut growth and winter wheat growth and meteorological observation data of Liaocheng from 1981 to 2014 were used to analyze the effects of the accumulated temperature variation on pod-setting stage, pod-filling stage and valid flower termination stage of summer peanut, and the anastomosis of accumulated temperature needed by winter wheat growth with the accumulated temperature of the corresponding periods. Results showed that: (1) the accumulated temperature (≥15℃) during the growth period of summer peanut (June 15th-October 5th, the same below) had an increase tendency from 1981 to 2014. The accumulative temperature (≥15℃) during the growth period of summer peanut was 2678.7℃ during 1981-2014 and 2681.4℃ during 2011-2014, both higher than 2600℃, which was the lowest limit of accumulative temperature required by the complete mature of summer peanut. There was an increase tendency with the accumulated temperature (≥15℃) during the late pod-filling stage (September 20th- September 30th, the same below) of summer peanut during 1981-2014, especially the average value of the accumulated temperature (≥15℃) during 2001-2014 war 3.3℃ higher than that of 1981-2014, and the average11-day daily temperature was 0.3℃higher, which was good for the formation of plump pods. According to the accumulated temperature (≥10℃), July 30th could be calculated as the valid flower termination date, which could provide the basis for timely chemical control, deducing the number of invalid flowers and pods, reducing the plant height to prevent the lodging and increasing the plump pod rate. (2)According to the standards of winter wheat strong seedlings, October 5th was calculated as the suitable sowing date of winter wheat. During the growth period of winter wheat (October 5th- June 15th, the same below), the average year accumulative temperature (≥0℃) of Liaocheng City (1981-2014) was 2335.71℃, which fully met the need of accumulative temperature of the normal growth and development of wheat. In conclusion, the accumulated temperature of Liaocheng City can completely meet the temperature requirements of peanut-winter wheat double-cropping and it is feasible to developing the summer peanut planting after winter wheat.