Two phosphate-solubilizing agentsFD11( Priestia sp.)andCH07( Bacillus aryabhattai)were used as experimental materials to carry out pot experiment of maize root irrigation. The effects of phosphate-solubilizing bacteria agents on maizegrowth，soilnutrients，soil microbial properties and the contents of different forms of phosphorus in rhizosphere soil were studied. The results showed that the application of phosphate-solubilizing bacteria improved the nutrient and microbiological characteristics of rhizospheresoil，increased the content of active phosphorus source in rhizospheresoil，promoted the growth of maizeroots，and showed a good growth promotion effect on maize seedlings. Compared with noinoculant，the plantheight，stem diameter and aboveground dry weight of maize seedlings treated with FD11 increased b 31.88%，36.39% and104.00%，respectively，while the availablenitrogen，available phosphorus and available potassium in rhizosphere soil increasedby21.90%，107.67% and5.77%，respectively. The contents of H2O-Pi(Pi represents inorganicP)，NaHCO 3 -P and NaOH-Pincreased，but the contents of HCl-Pi and residual-P decreased significantly. The application of phosphate-solubilizing bacteria affected the bacterial community structure in maize rhizosphere soil. At genus level of soil bacterialtaxonomy，the relative abundance of functional bacteria such as Acinetobacter，Pseudomonas， Pontibacter，Sphingobacterium and Arthrobacter increased significantly. Inconclusion，the application of phosphate-solubilizing bacteria significantly increased the content of soil availablenutrients，changed the community structure of soil bacteria in rhizospheresoil，and increased the content of active phosphorussource，thus improving soil fertility and promoting root development and seedling growth of maize. This study can provide theoretical basis for the research of new microbial fertilizer.