Salt stress is one of the main environmental factors that result in the stunted growth and yield losses in mungbean. Understanding of the tolerance mechanism under salt stress conditions and breeding for salt-tolerant mungbean cultivars would become of interest to increase the use ratio of saline-alkali land. This review summaries the identification methods and evaluation indexes of mungbean salt tolerance, the identification of salt-tolerant germplasms, the discovery of salt-tolerant genes, and the strategies to improve salt tolerance. Moreover, we propose future research focuses and experimental strategies, which aims to provide a reference for future research and breeding highly salt-tolerant mungbean varieties with elite agronomic traits.