Abstract: The TT&C system based on parabolic antenna can not satisfy the demand for multi-target TT&C in whole airspace. In order to solve the problems encountered in whole airspace and multi-target TT&C by single station,the antenna system based on spherical phased array for whole airspace and multi-target TT&C is proposed. Analysis and comparison the form of phased array antenna for whole airspace and multi-target TT&C, based on the analysis of the principle of spherical phased array, the radiation element and array layout are analyzed and designed, the antenna pattern of beam forming is simulated. Results shows that, the needs of future multi-target TT&C in whole airspace can be met effectively by whole airspace and multi-target TT&C antenna based on spherical phased array.