分析了2003—2022年长江中下游稻区通过国家审定两系杂交早稻组合的特征特性。2003—2022年，长江中下游稻区有46个两系杂交早稻组合通过国家审定，其中早中熟类型26个，迟熟类型20个；早中熟类型组合区试平均产量为508.91 kg/667 m²，迟熟类型组合为515.89 kg/667 m²，近年通过审定组合的区试产量更高；组合优质达标率仅为10.87%，对稻瘟病和白叶枯病抗性达到中抗及以上水平组合占比分别为15.22%和4.35%；列入全国农作物主要品种推广情况统计组合29个。截至2019年，有18个组合的推广面积超过6.67万hm²，4个组合的推广面积超过33.34万hm²，2个组合的推广面积超过66.67万hm²。

The characteristics of the nationally approved two-line early hybrid rice combinations in the area of the middle and lower reaches of the Yangtze River from 2003 to 2022 were analyzed in this paper. 46 two-line early hybrid rice combinations (26 early-medium ripening combinations and 20 late ripening combinations) had been approved by the national crop variety approval committee of China in the area. The average yields of regional test of early-medium ripening combinations and late ripening combinations were 508.91 and 515.89 kg/667 m², respectively. The regional test yield with approved combinations in recent years was higher. The high-quality compliance rate of the combinations was only 10.87%, and the proportions of the combinations which showed moderately resistant to rice blast and bacterial blight were 15.22% and 4.35%, respectively. 29 combinations were included in the national promotion statistics of major crop varieties. Up to the end of 2019, 18 combinations were extended in more than 66 700 hm², 4 combinations were extended in more than 333 400 hm², and 2 combinations were extended in more than 666 700 hm².