Abstract: 【Objective】 Which seriously restricts the production and development of rice, so it is of great significance to identify the salt tolerance of rice germplasm resources at bud and seedling stages.The results have provided germplasm resources and reference for further digging salt-tolerant rice germplasm and breeding new varieties. 【Methods】 A total of 219 stable recombinant inbred lines were used as experimental materials to identify and evaluate the salt tolerance of rice at bud stage and seedling stage using 1.2% NaCl solution and 0.7% NaCl solution, respectively. 【Result】 The results showed that the germination potential and germination rate decreased significantly after the treatment with 1.2% NaCl, and 4 salt-tolerant materials and 6 sensitive materials were screened.The germination potential, germination rate, bud length and root length of salt-tolerant materials decreased slowly, while the germination potential, germination rate, bud length and root length of sensitive materials decreased significantly.After 0.7% NaCl treatment at seedling stage, the survival rate of population materials decreased significantly.The comparison of phenotypes between salt-tolerant materials and sensitive materials showed that the plant height and survival rate of salt-tolerant materials decreased but did not reach a significant level, while the plant height and survival rate of sensitive materials decreased significantly, and the inhibition degree of salt-tolerant materials was less than that of sensitive materials. 【Conclusion】 The relative germination potential, relative germination rate and survival rate of 219 materials decreased significantly after salt stress at bud stage.The salinity tolerance of salt-tolerant materials is different from that of sensitive materials.The salinity stress of salt-tolerant materials is lower than that of sensitive materials.Eighteen materials with strong salt tolerance at budding stage are screened and seedlings of strong salt tolerance material 2 are also obtained.