Abstract: 【Objective】 This study aimed to determine cold resistance of annual seedlings of 15 tablegrape varieties,providing a theoretical basis for the extension of table-grape varieties and screening coldresistant parents of hybrid breeding in the area.【Method】 We measured the relative conductivity of the phloem and related indexes of cold resistance for 15 annual branches of table grapes at temperatures of 0,-14,-19,-24,-29,and-34 ℃ for 24 hours. We used the membership function method to comprehensively rank their cold resistance.【Result】 Our results show that there were differences in cold resistance between different grape varieties. The relative conductivity of all 15 grape varieties increased with decreasing temperature. The semi-lethal temperature ranged from-7. 33 to-16. 97 ℃. The comprehensive evaluation result was consistent with the semi-lethal temperature,and there was a significant correlation between them.Using the membership function method to comprehensively evaluate various indicators,combined with the semi-lethal temperature,could effectively identify the cold resistance between grape varieties.【Conclusion】 Our study concludes that the cold resistance of the 15 table-grape varieties ranged in the order as follows: Xiahei ＞ Kyoho ＞ Rosexiang ＞ Baoguang ＞ Wonderless Seedless ＞ Moonlight Seedless ＞ Zaoheibao ＞ Autumn Hongbao ＞ Shuangfeng ＞ Purple Sweet ＞ Yellow Italy ＞ Red Italy ＞ Frei Seedless ＞1198 ＞ Red Sun.