This study was conducted to evaluate the effect of salbutamol (beta-adrenergic agonist) on performance in male broiler chickens. A total of 420 (Cobb-500) day-old male broiler chickens were randomly assigned to 7 treatments each in 4 replicates of 15 birds per pen. Treatments include: control, 5, 10 and 15 mg salbutamol per liter water and 10, 20 and 30 mg salbutamol per kg diet. The experiments designed for 6 weeks. Results from this experiment indicated that feed intake at 1-42 days was reduced by 10, 20 and 30 mg/kg salbutamol compared with the control group (p<0.0001). Body weight gain and final body weight were reduced by 10 and 20 mg/kg salbutamol compared with the other treatments (p<0.0001). The feed conversion ratio was significantly affected by 10 mg/kg salbutamol compared with the control group (p<0.05). In conclusion, it seems that feeding salbutamol as a beta-adrenergic agonist, can improve growth performance in broiler chickens.