This work utilized image recognition technology and beam forming technology to build a phased array with the target tracking and transmitting the microwave with a focused beam. The coordinate position of the target is obtained from the image recognition module and converted into phase information for the phased array. This system was constructed by a 1 × 4 5.764 GHz phased array with four 4-bit phase shifters. The phase shifters formed the focused beam, which requires not only the direction angle of the target but also the transmission distance.