Systemic acquired resistance (SAR) plays an important role in the ability of plants to defend themselves against pathogens.Studied the effect of Arbuscular Mycorrhizal (AM) Fungi on induced resistance against Fusarium Wilt caused by Fusarium oxysporium f.sp. lycopersici have been conducted. The results showed that  M+P+NPK and M+P have ability to reduce the %of disease incidence of wilt disease by 93.3%, 66.7%respectively and reduction the % of disease severity by 97.3%, 86.1% respectively While treatment with fungicide  F1 and F2 gave the lowest reduction to disease incidence% by 46.6%, 66.7% respectively, disease severity% by 45.4%, 43.4% respectively. The results of the effect of AM fungi on growth parameters conducted that a significant stimulation plant growth characters that including fresh weight dry weight, root fresh weight, root dry weight, shoots length, number of leaves, and leaf area. In this connection total chlorophyll and carotenoids were significant increased in mycorrhizal tomato plants as compared to other treatments.  M+P+N was the best treatment which increased total chlorophyll and carotenoids (129.2%, 107.1 %), respectively this was followed by M+P+NPK by 116.7%, 78.6 %. Studied the effect of AM fungi on total phenols and found a significant increase in total phenol contents M+P+NPK gave the highly increase 75.6 % while M+P by 47% compared to the check. While F2 and Topsin-70 were gave increase, 20.3 %, 16.3 %, respectively compared to the check. The activity of TAL, POX, PPO, ACP and ALP of mycorrhizal tomato plants were significantly increased  as compared to other treatments. In the same  mannes, AM fungi increasing significantly the total nitrogen, phosphorous and protein.