Abstarct: This study was done to investigate the effect of mycorrhizal fungi with different levels of phosphorus and potassium fertilizers application on Corn yield and yield components in the fields of Agro Industry Astane ghods in Anabad-Bardaskan, as a factorial experiment in a randomized complete block design with 4 replications in 2012. Treatments were: mycorrhiza fungi at two levels (inoculated M1 and nonoculated M2), phosphorus in 3 levels (0, 50 and 100 kg/ha) and potassium in 2 levels (0 and 100 kg/ha). The results showed that mycorrhiza inoculation can not affect the resistance of maize to salinity in the early stages of plant growth in saline soil conditions. In many of the parameters measured in this study no significant differences was seen between mycorrhizal and non mycorrhizal plants. The positive effects of mycorrhizal fungi were seen in increasing some growth indices. Results indicated that mycorrhizal symbiosis improved some of corn parameters. Of course, this increase was not significant due the limiting factor of salinity. The results showed that the leaf area, number of grains per ear and grain weight was affected by interactions of mycorrhizal fungi, phosphorus and potassium. The yield was only affected by the interaction of phosphorus and potassium fertilizers. Percentage of seed nutrient was also studied and results showed that mycorrhizal fungi had a significant effect on seed phosphorus and increased the percentage of phosphorus in corn but did not have a significant effect on the uptake of nitrogen, potassium and sodium in seeds. The percentage of phosphorus, nitrogen and sodium of grains was significantly increased by other factors and caused a significant increase in the percentage of phosphorous, nitrogen and sodium but potassium percentage only affected by phosphorus and potassium- phosphorus interaction