An experimental study was carried out to show the effect of discrete short Monofilament Glass Fiber reinforcement on properties of sand - gravel (SG) soil mixture stabilized by cement dust. Sand -gravel (SG) samples were prepared in ratio of (1:2) respectively. On other side, the samples of SG were prepared with cement dust content (i.e. 30%, 40%, and 50%) by weight of dry SG. Finally, the best percentage of SG, cement dust mixtures were prepared with percentages of (GF) content (1%, 2%, and 3%) by weight of dry SG mixture. Compaction, shear strength and compressive strength tests were carried out on mixtures. It was observed that 1% GF was the best ratio which increased compressive strength, curing time accompanied by improvement of young's modulus and cohesion factor.