Double body ship with double curved surface and low water line

The utility model discloses a double curved surface-shaped catamaran hull with a small waterplane area, which comprises an upper deck, wherein the lower part of the upper deck has two demibodies, each of the two demibodies is uniformly composed of a support post and a diving body, wherein the two support posts are plate-shaped and are mutually in parallel, and the upper parts of the two support posts are respectively fixedly connected to both sides of the lower surface of the upper deck. The utility model is characterized in that the lower surface of the upper deck is laterally arched, the connection position of the lower surface of the upper deck and the support posts is in a circular arc shape, and the height between the utility model and a horizontal surface steps down gradually from a bow to a stern. The utility model can effectively reduce the slamming of waves and has long service life, and the utility model is suitable for being used on various boats with small waterplane areas.