Abstarct: This study aimed to evaluate the effect of tillage management and salicylic acid on agronomic characters and yield of corn (Zea mays L.) at mycorrhizae symbiosis condition, was carried out in the Agriculture Research Station of Shahrood University in crop year 2013-2014. An experiment was carried out as Split-Plot factorial baxsed on Randomized Complete Block Design (RCBD) with three replication. In this study, the main Plot was different levels of tillage systems In the three levels: 1- conventional tillage (Moldboard+disk+ Furrower), 2- reduce tillage (disk+Furrower) and 3- minimum tillage (Chisel+Furrower), the combination of levels priming with salicylic acid at 2 levels: (nonpriming and priming) and mycorrhizae symbiosis at 2 levels (non-application and application of mycorrhiza) were considered as subplots. baxsed on the results, interaction between different levels of tillage systems and priming with salicylic acid was significant on plant height trait. The result showed that, interaction between different levels of tillage systems and mycorrhizae symbiosis was significant on 100-seed weight, grain P and root colonization traits. Also, The result showed that, interaction between priming with salicylic acid and mycorrhizae symbiosis significantly increased grain protein. Moreover, traits of grain yield, biologic yield, Carotenoid and LAI was effected by interaction between different levels of tillage systems and priming with salicylic acid and mycorrhizae symbiosis. baxsed on mean comparisons, treatments combination of conventional tillage+ priming with salicylic acid increased plant height 26.17 percent in compared with minimum tillage+ non-priming with salicylic acid. Mean comparisons showed that, treatments combination of conventional tillage+ mycorrhizal inoculation increased root colonization 17 percent in compared with reduce tillage+ non- inoculation of mycorrhizae. Moreover, mean comparisons showed that treatments combination of conventional tillage+ priming with salicylic acid+ mycorrhizae inoculation increased grain yield equivalent to 6.42 T/ha in compare with Minimum tillage+ non-priming with salicylic acid+ non- inoculation of mycorrhizae. Also, mean comparisons showed that treatments combination of conventional tillage+ priming with salicylic acid+ mycorrhizae inoculation increased biologic yield and LAI respectively, 19.52 T/ha and 68 percent in compare with minimum tillage+ priming with salicylic acid+ non-inoculation of mycorrhizae and conventional tillage+ non-priming with salicylic acid+ non-inoculation of mycorrhizae.