Abstract: Seeds of rice were soaked by different concentrations of NaCl solution in order to study the effect on seed germination and seeding growth of rice. Four different concentrations (0.5%, 1.0%, 1.5%, 2.0%) of NaCl solution were treated on seeds of‘Kongyu 131’compared with the distilled water as control. The seed germination index and seeding growth state of rice was detected. The results showed that low concentration of NaCl (≤0.5%) had no significant effect on seed germination and seeding growth of rice. The seed germination rate, germination tendency and budding index became lower and lower with the ever higher salt concentration, and the seed germination was inhibited under high concentration of NaCl (>0.5%). There was no significant effect on seeding growth of rice‘Kongyu 131’. The study indicated that the endurable stress of NaCl concentration for seed germination of rice was under 0.5% , rice seed germination was significant inhibited under higher concentration than 0.5% NaCl.