A rotary electric shaver includes a main body in which a first transmission mechanism, and a connecting portion is disposed; a head unit in which a plurality of blade units each having an outer blade, an inner blade being in sliding contact with an inner surface of the outer blade, and a driven shaft rotating the inner blade are disposed, and a second transmission mechanism that transmits a power of the first transmission mechanism to rotate the driven shaft is built, and which is connected to the connecting portion. The head unit has a first magnet disposed at a position corresponding to each of the blade units. The main body has a second magnet disposed at a position facing and repelling the first magnet.