Abstract: In order to study the growth performance of forage rape under saline alkali conditions, the pH values of S₁～S₆ salt concentration were 6.60, 6.62, 6.64, 6.67, 6.77 and 6.86, and the pH values of A₁～A₆ alkali solution were 8.62, 9.02, 9.17, 9.23, 9.29 and9.32. The growth performance of feed rape was studied. The results showed that there was no significant effect on Seed Germination of feed rape under salt and alkali stress（P＞0.05）; seedling growth was significantly inhibited under salt and alkali stress, and the inhibition of seedling growth under alkali stress was stronger than that under salt stress.