The present study was conducted to study the effect of adding unsaponifiable matters of whole barely grains (WBG), wheat germ (WG) and rice bran (RB) oils on the stability of sunflower oil (SFO) at levels of 0.05, 0.1 and 0.15% compared to Butylated hydroxy tolune (BHT) at the level 0.02%. Results showed that: WBG, WG and RB oils contains 55.9, 57.96 and 34.37%. Lenoleic acids respectively, 5.85, 4.7, and 4.09% unsaponifiable matter respectively, and it contain (2.92 , 7.05 ), (1240, 1562.22) and (21.5 , 58.62) ppm a- tocopherol and total tocopherols respectively. Also, unsaponifiable matter at 0.15% ratio of WBG, WG and RB oils Increased the oxidative stability of SFO for 8.61, 6.73 and 7.78 hr. respectively and decreased the peroxide values and UV absorbance at 232 and 270 nm. From the previous resulted it could conduced that best results for oxidative stability of SFO is due to using unsaponifiable matters of WBGO followed by RBO and then WGO.