The invention provides a fuel oil transfer device capable of preventing fuel oil taken out from a fuel oil storage tank from being affected by atmospheric temperature and being in a viscosity increasing state, to prevent deterioration of transfer efficiency. The fuel oil transfer device comprises: a fuel oil storage tank (2) arranged on a position to receive heat of atmosphere; a fuel oil precipitation tank (3) for heating the fuel oil sucked from the fuel oil storage tank (2), and a fuel oil daily tank (4) for temporarily storing the heated fuel oil in the fuel oil storage tank (2) so that heated fuel oil return to the fuel oil storage tank (2) and the fuel oil can be circulated. The fuel oil storage tank (2) has a suction pipe (2C) having a bell mouth (2B) opening toward the bottom in the deepest position in a longitudinal direction; and a steam heating pipe (30) disposed in pairs near the bell mouth (2B).