The effects of different salt stress concentrations on the growth and stress resistance of four japonica rice varieties Jinyuan 85, Jinsui 26, Longgeng 27, Liaogeng 763 were studied, in order to provide a theoretical reference for the screening of suitable rice varieties in saline-alkali land. The results showed that salt stress significantly inhibited the growth of rice seedlings, and the growth of Jinsui 26 seedlings was the least affected by salt. Under salt stress, Jinyuan 85 ion had strong selective absorption, which is beneficial to improve its salt tolerance. The main damage of salt stress to rice was that salt stress destroys the membrane structure and further affects the normal function of cells. When the salt stress concentration was higher, the MDA content of the cells was Liaogeng 763>Longgeng 27>Jinyuan 85>Jinsui 26. There were also differences in catalase activity between salt tolerant rice and salt sensitive rice. Taken together, the order of salt tolerance was Jinsui 26> Jinyuan 85> Longgeng 27> Liaogeng 763.