Abstract: This study was conducted to evaluate economic value of clove and oregano cultivated in Iran on economic value of broiler chickens diets. About 271 day old Ross strain broiler chickens were allocated to 9 experimental diets with 3 replications in a 3x3 factorial experiment. Treatments were 0, 0.5 and 1% of clove and oregano (AH) that used as top-dress. A basal diet was formulated according to NRC recommendation for grower (14-21 days) and finisher (21-42) periods. The results showed that clove and oregano had significant effects on feed intake, feed conversion ratio and the cost of 1 kg feed and cost of 1 kg meat production (p<0.05).