The present study was undertaken to investigate the effect of dietary supplementation of turmeric (Curcuma longa) powder on the performance, carcass traits and behavior of native Fayoumi broiler. A total number of 120 one month old commercial male Fayoumi broilers with nearly similar weights were randomly distributed into three experimental groups each 40 birds in 4 replicates (10 bird/replicate). Birds in the first group were fed on standard basal diet without any addition ( control T1) while, Fayoumi broilers in the second and the third groups fed on the same basal diet supplemented with 0.5 and 0.75% turmeric powder (T2&T3). Growth performance parameters, carcass traits, and behavioral parameters were assessed. The  results showed that, there was a significant increased in body weight gain, feeding, drinking and sitting behavior, total protein, globulin, calcium, phosphorus and dressing percentage while, significant decrease in FCR, walking and standing behavior. Addition of turmeric powder in the second and third treatment had no significant effect on albumin level, relative weights of liver, gizzard, heart and spleen over six weeks of experimental period. Results of the current study concluded that using turmeric (curcuma longa) powder supplement in Fayoumi broiler diets improved growth performance and ingestive behavior, in addition, total serum protein, globulin, calcium, phosphorus and dressing percentage were increased significantly.