Abstract: In order to further explore the key climatic factors affecting the quality of Ruoqiang gray jujube, based on the observed climate data of Ruoqiang and Xinzheng in 2019, the effects of climatic factors on the appearance, sugar content, acid, VC, protein and mineral elements of gray jujube were analyzed and explored by means of experimental comparison. The results showed that the influence of meteorological factors on different quality indexes of gray jujube was different and varied greatly, among which the meteorological factors that had the greatest influence on single fruit weight, protein, fruit shape index and soluble total sugar of huizao were average temperature difference, average temperature, average maximum temperature, sunshine hours and total precipitation, respectively; The main meteorological factor affecting Mg content was the maximum humidity; The main meteorological factors of VC and total soluble sugar were average lowest temperature and average relative humidity.

Key words: gray jujube quality, meteorological factors, regression analysis