An arc-shaped microwave oven is disclosed, including a cooking cavity, an oven base, a microwave generation unit disposed within the oven base, and a control unit also disposed within the oven base, wherein the oven base includes a bottom portion and a back portion that is assembled with the bottom portion, the cooking cavity is formed by a cavity surrounded by the bottom portion, the back portion and a furnace door, the furnace door is in a hood shape and provided with a microwave shielding cover, and the microwave generation unit and the control unit are electrically connected to an operation/display unit. The furnace door can be movably connected to the back portion, the furnace door can swing up and down relative to the bottom portion and the back portion to open and close respectively, and the furnace door can be in an arc hood shape.