The experiment was conducted to study the effect of multi-enzyme on carcass trait and hemato-biochemical parameters of broiler birds (Vencobb-430). A total number of 300 birds were reared for a period of 42 days with dietary treatments; T0-Control diet as per BIS (2007), T1- T0+multi-enzyme, T2-standard broiler diet with 2.5% reduction in energy than BIS, (2007) + multi-enzyme, T3- standard broiler diet with 5% reduction in energy than BIS, (2007) + multi-enzyme and T4-standard broiler diet with 7.5% reduction in energy than BIS, (2007) + multi-enzyme. Results showed that no significance difference for dressing, edible and giblet percent but the abdominal fat percentage was low in T4 and breast meat percentage was (P