This study was conducted at Poultry Farm of Animal Resources Dept., College of Agriculture, University of AL-Qasim Green to investigate the effect of adding Cinnamomum zeylanicum powder to the ration of broiler Ross 308 on productive traits. The Breeding 90 broiler chicks Ross 308 day-old were randomly assigned to three treatments (by 3 replicates per treatment 10 chicks per replicate) and treatments were as follows: control group without adding Cinnamomum zeylanicum powder to the diet, add Cinnamomum zeylanicum powder by 2000 mg / kg feed (first treatment) and add Cinnamomum zeylanicum powder by 2500 mg / kg feed (second treatment). The experiment included a study of the following characteristics: body weight, weight gain, feed consumption, feed conversion efficiency and mortality. The results indicated that the addition of Cinnamomum zeylanicum powder in 2000and 2500mg / kg feed to broiler dietled to a significant improvement in all the qualities of productivity compared to the control group. Concluded from this experience, that in addition to C innamomum zeylanicum powder to the diet can lead to improved performance of thebroilerproduction.