The Wear Characteristics of Al-Si alloys were investigated with various Si contents by using the not-dispersed alloys and uncoated-graphite dispersed alloys. Uncoated-graphite dispersions were accomplished by Vortex method carrying 1 hr. heating at 400℃ on uncoated-graphite. Wear loss were increased by increasing Si contents at the elevated final load. Hyper-eutectic alloys showed higher wear resistance values at the small final load of 2.1㎏ and 3.2㎏, but at the more increased final load, hypo-eutectic alloys showed higher wear resistance values than hyper-eutectic alloys. The property of wear resistance of uncoated-graphite dispersed Al-Si alloys showed more good values than not-dispersed alloys. This peroperty of increased war resistance were resulted from lubricating action of dispersed graphite.