Phosphate-solubilizing microbes(PSM)represent a large group of rhizosphere microbes which can dissolveinsoluble phosphate to release dissolved phosphate.PSM play a vital role in promoting plantgrowth.In thiswork，we reviewed the plant-growth-promoting mechanisms of PSM involving in mineralelements，hormone，root systemarchitecture，photosynthesis，and soilfertility，and proposed the emphasis of further research，expecting to provide theoreticalinformation for furtherresearch.