This review article by Heikham Evelin, Rupam Kapoor, and Bhoopander Giri discusses the role of arbuscular mycorrhizal fungi (AMF) in alleviating salt stress in plants. Salt stress is a significant threat to plant growth and productivity, affecting over 7% of the Earth's land surface. AMF, which colonize over 80% of terrestrial plant species, have been shown to enhance plant growth and salinity tolerance through various mechanisms. These include improved nutrient acquisition, maintenance of the K⁺:Na⁺ ratio, biochemical changes (accumulation of osmolytes), physiological changes (improved water status and photosynthetic efficiency), and molecular changes (expression of specific genes). The review highlights the importance of AMF in enhancing plant performance under saline conditions, particularly in halophytes. It also discusses the impact of salinity on AMF colonization, spore germination, and hyphal growth, and the mechanisms by which AMF reduce the negative impacts of high salinity on plants. The article concludes by identifying areas for further research, such as molecular and ultrastructural changes, to better understand the symbiotic relationship between AMF and plants under salt stress.This review article by Heikham Evelin, Rupam Kapoor, and Bhoopander Giri discusses the role of arbuscular mycorrhizal fungi (AMF) in alleviating salt stress in plants. Salt stress is a significant threat to plant growth and productivity, affecting over 7% of the Earth's land surface. AMF, which colonize over 80% of terrestrial plant species, have been shown to enhance plant growth and salinity tolerance through various mechanisms. These include improved nutrient acquisition, maintenance of the K⁺:Na⁺ ratio, biochemical changes (accumulation of osmolytes), physiological changes (improved water status and photosynthetic efficiency), and molecular changes (expression of specific genes). The review highlights the importance of AMF in enhancing plant performance under saline conditions, particularly in halophytes. It also discusses the impact of salinity on AMF colonization, spore germination, and hyphal growth, and the mechanisms by which AMF reduce the negative impacts of high salinity on plants. The article concludes by identifying areas for further research, such as molecular and ultrastructural changes, to better understand the symbiotic relationship between AMF and plants under salt stress.