Soil salinization threatens food security and ecosystem health, and is a major contributor to the degradation of many ecosystems globally. It has been one of the primary challenges that have significantly affected the processes, structure and functions of worldwide ecosystems including plant production, organic matter decomposition, soil nutrient cycling and biodiversity. By climate change, projected sea-level rises (SLR) and process of soil salinization in coastal areas will have a direct impact on population migration by lowering the food production and negatively effecting regional socioeconomic growth. Plant–microbe interactions must be coordinated in order to improve plant growth and maintain optimal soil conditions. Rhizosphere interactions based on complex exchange are more complex than those take place in non-rhizosphere soil. The diversity of soil microorganisms is incredibly high, and they are involved in many important ecological processes. The use of phosphate-solubilizing microorganisms, nitrogen-fixing bacteria, the formation of microbial biofilms on non-legume roots, and the interaction of arbuscular mycorrhizal fungi with plants all have enormous potential as bio fertilizers because they improve phosphorus and nitrogen bioavailability for the plant, support sustainable agriculture, improve soil fertility, and increase crop yield.