Abstract: In order to effectively utilize and improve saline-alkaline land, improve the ecological environment, this study used eight rice germplasm resources as materials, and set up mild, moderate and severe saline-alkaline stress for field saline-alkaline tolerance analysis.Comparative analyses of the indicators of plant survival rate, plant height, tillers, relative chlorophyll content, number of grains per spike, fruiting rate and thousand-grain weight were also conducted. The results showed that there were differences in salinity tolerance among rice varieties, and the survival rate of rice showed that mild saline stress＞moderate saline stress＞heavy saline stress, and the survival rate of rice varieties demonstrated a declining trend from greening to maturity.rice that was subjected to saline stress seemed to have a shorter plant height and a shorter spike length, and with the increase in the degree of saline stress the inhibition of plant height and spike length became stronger, and the same varieties of plant height and spike length showed a significant differenceamong three kinds of saline stress treatments. The values of light saline stress＞moderate saline stress＞heavy saline stress, and the difference between the three saline stress treatments was significant（P＜0.05）. SPAD values at spike flushing period ranged from 42.5 to 55.6, and the difference between the treatments and the control was not significant; yield inhibition rate of rice under heavy saline stress was as high as 81.0%-93.7%, moderate saline stress was 10.4%-81.3%, and mild saline stress was 5.6%-77.9%. The relative inhibition rate of yield and yield components were mainly shown as severe saline stress＞moderate saline stress＞mild saline stress, and the higher the degree of salinization, the greater the loss of yield and yield components of rice, and the correlation analysis showed that the relative inhibition rate of yield and the relative inhibition rate of the number of spikes per unit area were highly significant. Correlation analysis showed that the relative inhibition rate of yield was highly significantly correlated with the relative inhibition rate of the number of spikes per unit area, and positively correlated with the relative inhibition rate of the number of grains and the relative inhibition rate of the fruiting rate. It can be explained that salt alkali stress inhibits the growth and development of rice, leading to a decrease in yield. However, reasonable development and utilization of moderate to mild saline alkali soil can expand the planting area of rice.