A total of 216 day old broiler chicks (Arbor Acers) were weighed and distributed into equal 4 experimental groups of three replicates for each to explore the effect of  dietary grape seeds (0, 0.5, 1.0 and 1.5%) addition on growth parameters, nutrients utilization and carcass characteristics as well as economic efficiency during fattening period (1-35 days of age). The results indicated that live body weight, body weight gain , feed conversion ratio and production index traits significantly (P≤0.05) improved for chicks fed diet contained 1.0% grape seeds (GS), while these parameters recorded non-significant improvement by 0.50 and 1.5%GS levels compared with chicks fed the control diet during the entire experimental period (0-35 days of age). Using GS in broilers diet recorded non-significant improvement for nutrients digestibility than the control except for fiber digestibility which was significantly improved. Feeding value improved (P>0.05) for chicks by dietary grape seeds addition. Total edible parts (%) insignificantly elevated by feeding different GS diets than the control. Chicks fed 1.0% GS diet recorded the best economic efficiency compared with the control at the entire experimental period. Therefore, it might be concluded that feeding diet contained 1.00% GS for broiler chicks might be used to improve growth performance and nutrients utilization as well as economic efficiency during the fattening period.