Abstarct: Over the last years, various structural control methods has been developed with emphasis on reducing response to the dynamic loads especially wind and earthquake loads. By and large, these methods can be grouped into three broad areas: (a) Active control (b) Semi-Active control and (c) Passive control. These methods differ from each other in energy consumption . All of these methods operate to reach optimum structural response and reducing costs. In this research, the antenna mast of MILAD tower is selected as a case study. Original structure is designed and installed without any control system. In this research , active control is used for reducing the structural response to he dynamic wind loads. Construction, transportation and installation of the antenna mast takes a lot of time and needs special equipments due to large weight. Main propose of this research is to design an optimized structure using active control. The optimized structure with active control have a response similar to the original structure while having much lower weight. Consequently, it is expected that the optimized structure has lower construction , transportation and installation costs considering that the structure is placed in an elevation around 315 m above the ground.