Phosphate-solubilizing microorganisms (PSMs) are a group of plant growth-promoting rhizobacteria, which can dissolve insoluble phosphates and increases P uptake by the plant as well as improve properties of saline-alkaline soil. In this article, the PSMs and their application research status were briefly reviewed. The research status of PSMs in saline-alkaline soil including the halotolerant varieties, saline-alkali tolerance, phosphate-dissolving abilities and mechanisms, especially their roles in saline-alkaline soil remediation were comprehensive reviewed. It was expected to provide an important reference for the use of saline-alkali tolerant PMS to alleviate plant damage under salt stress and remediate saline-alkali soil.