In order to clarify the optimal sowing time of naked oats in saline-alkali land in the Yellow River Delta, three sowing dates（March 6th, March 22nd and April 6th）were set up in 2023 to study the effects of sowing time on the growth period, yield and quality of naked oats. The results showed that the number of oat growth days on March 6th and March 22nd was similar, and the growth period on April 6th was significantly shortened. With the delay of sowing date, the accumulated temperature and plant height of the three oat varieties decreased during the growth period. The number of grains per spike and grain yield of oats sown on March 22nd were the highest. The 1 000-grain weight of oats sown on March 6th was the largest; The response of crude fat, crude protein and crude starch content to sowing date was inconsistent among different oat varieties. On the whole, the optimal sowing time of naked oats on saline-alkali land in the Yellow River Delta was March 22nd, and the growth period of oats under this sowing date was moderate, and higher yields could be obtained. The cultivar Bayou 8 had the highest yield and was suitable for monoculture system, while Huazao 2 had a shorter growth period, which could be used as a recommended variety for oat-maize rotation system. The results of this study can provide reference and data support for the selection of high-yield cultivation and sowing date of naked oats in the Yellow River Delta.