An angle diversity receiving device performs angle diversity reception by configuring branches of angle diversity in accordance with received signals of an array antenna, the angle diversity receiving device being provided with: a plurality of phased array synthesizing unit that generates a received signal of a branch by performing phased array synthesis for the received signals of a plurality of antenna elements included in the array antenna; and a correlation control unit that outputs a correlation value for the received signals of two branches; wherein the phased array synthesizing unit controls the angular difference in the orientations of the branches for which the correlation value was computed so that the correlation value decreases.