Abstract: 【Objective】 To connect the dots between sugar accumulation and temperature in drip irrigation sugar beet is of great significance for selecting planting areas by predicting sugar content of the year and determining harvest time. 【Methods】 To investigate the dynamic changes of sugar accumulation in 2020 and 2021, analyze the correlation between sugar accumulation and various temperature indicators and explore the correlation between sugar content at harvest of sugar beet in 2018-2022 and various temperature indicators in the key period of rapid sugar accumulation from mid-September to late September, the main sugar beet variety KWS9147 in Xinjiang was used as the test material. 【Results】 The correlation degree between temperature indexes and sugar accumulation was low in July and August. The average temperature, average low temperature, average high temperature, maximum low temperature, stage minimum temperature, accumulated temperature above 10℃and accumulated temperature above 0℃were all negatively correlated with sugar accumulation from September to early October, while the diurnal range, average diurnal range and maximum diurnal range were negatively correlated with sugar accumulation, but not significantly. From mid-September to late September, the average low temperature and maximum low temperature were significantly negatively correlated with sugar content during harvest, the average temperature, average high temperature and stage maximum high temperature were negatively correlated with sugar content, while the average diurnal range and maximum diurnal range were negatively correlated with sugar content. The correlation between accumulated temperature above 10℃and accumulated temperature above 0℃and sugar content was the same as that of average temperature. 【Conclusion】 Among the indexes of temperature, low temperature has more important influence on sugar accumulation and sugar content of beet during harvest.