This study was conducted to find out the effects of cinnamonon performance, carcass characteristics and blood parameters were studied in Japanese quails. This study was carried out with 375, 7 days old of Japanese quails in 5 treatment groups and 3 repetitions. The experimental groups were as follows: EG1, First group as control group did not receive any herbal plant extract,EG2, 100 ppm of cinnamon extract, EG3, 150 ppm cinnamon extract, EG4,200 ppm cinnamon extract, ,EG5,250 ppm cinnamon extract herbal plant. The results showed that the best result for FCR and the highest feed intake were in EG4 and the highest percent of carcass was observed in the group 5 but the lowest percent of carcass was observed in control group also the highest percentage of liver and the lowest level of cholesterol and triglyceride were observed in group 4.