As the most widely cultivated bast fiber crop globally， jute （Corchorus spp.） exhibits remarkable salt tolerance characteristics. The screening of salt-alkali tolerant jute germplasms are crucial for the utilization and improvement of China′s abundant saline-alkali land resources. This study aimed to systematically evaluate the salt tolerance of 100 jute germplasms and identify superior materials suitable for cultivation in saline-alkali soils. Through indoor hydroponic experiments， with treatments of 0， 200， 230 and 250 mmol/L NaCl， the salt injury index was investigated during the seedling stage. A Linear Mixed Model （LMM） was employed to analyze genotypic random effects， for which the Best Linear Unbiased Prediction （BLUP） breeding values for salt tolerance were obtained for scoring and grading. Concurrently， field trials were established in natural saline-alkali soil with a salt content of approximately 4‰， where plant height and stem diameter were measured at the technological maturity stage. The results showed that the broad-sense heritability of salt tolerance in jute was approximately 0.299， indicating a moderate level of genetic control. Sixteen highly salt-tolerant accessions were identified. Field phenotypic analysis revealed abundant genetic variation in growth traits under salt stress ， with coefficients of variation of 14.14% for stem diameter and 12.50% for plant height. Correlation analysis demonstrated a significant positive relationship between stem diameter and salt tolerance （r=0.267， P=0.008）. Cluster analysis based on salt tolerance， stem diameter， and plant height categorized the germplasms into nine groups： high salt tolerance-high yielding type （11 accessions）， high salt tolerance-medium yielding type （13 accessions）， common type （16 accessions）， medium yielding-medium salt tolerance type （12 accessions）， high yielding-salt sensitive type （16 accessions）， thin stem-medium salt tolerance type （9 accessions）， dwarf-medium salt tolerance type （9 accessions）， dwarf-low salt tolerance type （7 accessions）， and salt sensitive type （5 accessions）. This approach enabled the effective screening of 11 elite germplasm that combine high salt tolerance with high yield potential. This study establishes a comprehensive evaluation system for jute salt tolerance， integrating laboratory-based seedling screening and field-based trait analysis at maturity. It provides valuable germplasm resources and a theoretical foundation for breeding salt-tolerant jute varieties and utilizing saline-alkali lands.