Abstract: In order to develop the appropriate cultivation and hay-making technique for Arena sativa L. in saline-alkaline soil, a total of six cultivars of Arena sativa L. were used as experimental materials and were cultivated in soil with different saline and alkaline degrees （the cultivars of Muwang and Lingxiu were cultivated in severe-moderate saline-alkali soil, the cultivars of Beile and Yanwang were cultivated in moderate saline-alkali soil, the cultivars of Beile No.2 and Aiwo were cultivated in mild saline-alkali soil）. The grass yield, agronomic characters and nutritional quality of varied cultivars of Arena sativa L. at different growth periods were evaluated, and the differences in resistance to saline-alkaline between different cultivars were assessed. The results revealed that an appropriate saline-alkaline degree promoted the growth and development of Arena sativa L.; the cultivar of Muwang had the higher resistance to saline-alkaline followed by Lingxiu, and the poorest resistance to saline-alkaline was found in Beile; the cultivars of Muwang and Lingxiu had higher hey yield and their hay-making was recommended to be carried out at milky stage, while the cultivars of Beile and Beile No.2 had lower hey yield and their hay-making was recommended to be carried out at full ripening stage.