Manufacturing method of small unmanned ship

The present invention is to provide a method for manufacturing a small unmanned ship having a stable strength of the hull and reducing mold manufacturing cost and hull drying time. According to the present invention, provided is a method for manufacturing a small unmanned ship comprising the steps of: using a three-dimensional (3D) printer to manufacture a lower plate mold in which a lower plate groove part having a shape corresponding to a lower plate of the ship is formed on an upper surface and an upper plate mold in which an upper plate groove part having a shape corresponding to the upper plate of the ship is formed on the lower surface; attaching and forming a reinforced protective material to the surface of the lower plate groove part of the lower plate mold and the upper plate groove part surface of the upper plate mold; after combining the lower plate mold with the reinforced protective material to face the upper plate mold, forming a hull through vacuum molding while supplying an epoxy resin between the lower plate mold and the upper plate mold; and separating the molded hull from the lower plate mold and the upper plate mold. 본 발명은, 3D프린터를 이용하여 상면에 선박의 하판부에 대응되는 형상을 가지는 하판홈부가 형성된 하판몰드와, 하면에 선박의 상판부에 대응되는 형상을 가지는 상판홈부가 형성된 상판몰드를 제작하는 단계, 하판몰드의 하판홈부 표면 및 상판몰드의 상판홈부 표면에 강화보호재를 부착 형성하는 단계, 강화보호재가 부착된 하판몰드와 상판몰드를 마주보도록 결합한 후, 하판몰드와 상판몰드 사이에 에폭시 수지를 공급하면서 진공 성형을 통해 선체로 성형하는 단계, 성형된 선체를 하판몰드와 상판몰드에서 이탈시키는 단계를 포함하는 소형 무인선박의 제조방법을 제공한다.