The invention provides a base station antenna feed network which comprises at least two power dividers and at least three phase shifters. The output end of a front phase shifter is connected with the input end of a power divider. One output end of the power divider is used as one output end of the whole feed network, and the other output end is connected with the input end of a next phase shifter. Each phase shifter comprises a fixed transmission line and a slidable transmission line. The phase shifters and the power dividers are respectively arranged in an integrally formed metal chamber structure. Feed points are arranged along a long side direction. The base station antenna feed network according to the invention realizes flexible power dividing ratio design, stable performance and relatively low power loss. So that the feed network has advantages of compact structure, relatively small dimension, easy manufacture, low cost, easy realization for wide frequency band, more stable integral performance, higher consistency, and flexible combination for increasing number of output ends.