Abstract:In order to study the effect of meteorological elements on the beginning flowering period of snow pear, and the beginning flowering period of snow pear was predicted accurately,the phenological data and ground meteorological observation data of snow pear flowering period in Jinchuan county from 2008 to 2017 were used to analyze the meteorological factors affecting snow pear flowering period.The results show that the influence of temperature was significant, followed by sunshine and weak precipitation.The significant influence of temperature on the beginning flowering period of snow pear is mainly reflected in the late winter and February. The days with the average temperature ≥10 ℃ in February and the average temperature in late February play a leading role in the beginning flowering period of snow pear. The more days with the average temperature ≥10 ℃ in February, the higher the average temperature in late February and the earlier the beginning flowering period of snow pear, and vice versa.Using SPSS software and stepwise regression analysis method, the prediction model of snow pear initial flowering period was established. The forecast accuracy of the model can meet the business requirements and provide the accurate forecast of flowering time for the government and the tourism department.