Abstract: 【Objective】 To study the growth and development characteristics of sugar-beets in specific ecological areas in southern Xinjiang which might be of certain theoretical significance for the late planting of sugar-beets and the improvement of yield and sugar content in the southern Xinjiang region. 【Methods】 In this study, 14 sugar-beet varieties introduced from Kashgar region of southern Xinjiang were used as materials to comprehensively evaluate the adaptability of late sowing sugar-beet varieties through 11 yield related traits such as biomass accumulation and distribution, number of harvested plants, root unit weight, yield, and sugar yield. The methods of coefficient of variation, correlation, principal component analysis, membership function, and cluster analysis were used to evaluate the adaptability of late sown sugar-beet varieties. 【Results】 Different sugar-beet varieties had different adaptability. Through principal component analysis, 11 yield related traits were transformed into 3 principal components, namely, biomass factor, root tuber yield factor, and sugar yield factor. The cumulative variance contribution rate was 89.886%. 14 sugar- beet varieties were divided into 3 categories, among which KWS1130 had the strongest adaptability and stability in yield correlation traits such as aboveground and underground biomass allocation traits, root crown ratio traits, and single root weight, ranking first in comprehensive rankings, and belonged to a strong adaptability category. 【Conclusion】 Sugar-beet variety KWS1130 is suitable for late planting of southern Xinjiang, and can ensure high yield and sugar production.