The structure and composition of rhizosphere microbial communities are affected by halophyte species and their different salt tolerance regulation modes. In order to clarify the difference of fungal community structure and composition between rhizosphere and bulk soils of different halophytes and their relationship with soil environment, we collected rhizosphere and bulk soil of Phragmites communis, Suaeda salsa, and Aeluropus sinensis from the 0-20 cm soil layer of three halophytes in the Yellow River Delta. The diversity and structure of the fungal community were analyzed by highthroughput sequencing, and the relationship between the fungal community characteristics and soil physical and chemical factors was explored. The results showed that: (1) the fungal richness is higher in rhizosphere than in bulk soil for all three halophyte species and the highest fungal richness was found in rhizosphere soil of Aeluropus sinensis. (2) The distance heat map showed that the similarity between P. communis and S. salsa bulk soil fungal communities was the greatest. (3) Soil fungal diversity and richness were positively correlated with soil total carbon, total nitrogen, available phosphorus and pH, but negatively correlated with soil salt content. (4) In rhizosphere and bulk soils of three halophytes, Glomeromycota was the absolute dominant phylum, while Scutellospora was the dominant genus. (5) RDA analysis showed that soil salt content was an important factor affecting soil fungal community structure, and the abundance of Glomeromycota was positively correlated with soil total nitrogen, total carbon, available phosphorus, organic carbon and pH, while negatively correlated with soil salt. (6) The characteristics of plant soil fungal community varied with the type of halophytes and the distance from the soil samples to the roots of host plants.