PURPOSE: A bow thruster structure is provided to effectively reduce flow resistance considering a streamline according to a heading direction of a hull. CONSTITUTION: A bow thruster structure comprises a scallop(32) and a chamfer(31). The scallop is concavely formed corresponding to the outer circumference of a cylindrical cylinder. The cylindrical cylinder has an extended length in a streamline direction(f) and one side thereof is inwardly inclined to a bow thruster structure tunnel(2). The scallop and chamber are respectively formed in a stern part and a stem part based on a center line(X'-X').
