In this graduate work construction of the dredger hull has been elaborated. Based on the collected data, basic division of the dredges was defined by type, its characteristics and technical specifications. For easier understanding of the dredger functioning, the system of axcavator operation is described along with parts of the hull and equipment essential for its functioning. With requirements of the classification society for hull construction, methods of testing, construction of the ship structure and equipment are defined alongside with the parts of the structure that are subjected to the testing. Based on the limitations of production process in the pretreatment, treatment, premontage, enlargment, corrosive protection and montage, the hull is divided into sections and their review is given. Particularly crafted parts of the ship's structure, such as aft well, bilge well, pylon trolley carrier, and rotational bow are specially elaborated. The biggest part of the work is related to the working hand of the digger which is located in the aft well. The working hand of the digger is characterized by its dimensions and a mass of 1100t which is why completely new boat launching technology by stern is applied, with the mounting of the digger being carried in the lateral slipway directly behind the aft well in which the digger will be launched into. More detail is made on premontage, montage and equipping the block of digger working hand, and the processes of its welding, corrosive protection and dimensional control are elaborated.