Abstract: To conduct a quantitative evaluation of the climatic quality of sweet cherry,Prunus avium,the typical sweet cherry cultivar "Summit" was selected as the experimental material.Based on the quality data of sweet cherry and meteorological data in Dalian from 2019 to 2023,Pearson correlation analysis,stepwise regression,weighted summation method and other methods were used to determine the grading indicators for the climatic quality of sweet cherry and to establish a climatic quality evaluation model for sweet cherry.The results show that both single fruit weight and fruit diameter of sweet cherry are positively correlated with temperature-related factors during the flowering and fruit development periods,and are highly significantly positively correlated with the accumulated temperature ≥10 ℃ during the whole growth period.They are negatively correlated with precipitation-related factors during the fruit development period,and are highly significantly negative correlated with total precipitation during the whole growth period.The soluble solids content is positively correlated with temperature-related factors during the fruit ripening period and is significantly positively correlated with the average temperature during the ripening period.The premium climatic quality indicators for sweet cherry in Dalian area are an accumulated temperature ≥ 10 ℃ of no less than 974.6 ℃·d during the whole growth period,total precipitation less than 130.5 mm during the whole growth period,and an average temperature of 20.8~22.0 ℃ during the ripening period.Verification results indicate that the evaluation indicator IACQ can be used for climatic quality assessment of sweet cherry.