Marine shutter door

The utility model discloses a marine shutter door. The marine shutter door is provided with an inner frame (1) and an outer frame (2). The outer frame (2) is fixed on a base plate (3) by bolts. The base plate (3) is welded on a bulkhead (4). One side of the inner frame (1) is connected with one side of the outer frame (2) through annular toggle clips (5), and the other side of the inner frame (1) is connected with the other side of the outer frame (2) through hinges (6). A shutter (7) is arranged in the inner frame (1). A door handle (8) is arranged on the inner frame. A cabin and an emergency generator room are generally positioned above a load waterline convention position 2, and an opening at the position is generally not required to be weather-tight, so that the conventional steel door can be replaced by the marine shutter door. The marine shutter door is convenient to mount and low in cost, and has a ventilation function, so that the normal running and operation of cabin equipment can be ensured.