The invention discloses a three-station type J-shaped paving system. The three-station type J-shaped paving system comprises a J-shaped tower, a pipeline conveying device, a pipeline paving device andan angle adjusting component, wherein the J-shaped tower is rotatably connected with a hull deck; the pipeline conveying device is used for moving a pipe section to be paved from the deck to the interior of the J-shaped tower, and comprises a horizontal conveying component and a vertical upper pipe component; the horizontal conveying component is paved on the deck; the vertical upper pipe component comprises a loading arm arranged on the deck and a pipeline elevator, a rotating arm and a vertical pipe wheel which are arranged on the J-shaped tower; the pipeline paving device is arranged on the J-shaped tower; and the two ends of the angle adjusting component are respectively hinged to the J-shaped tower and the deck so as to adjust the angle of the J-shaped tower. Three work stations arearranged in the J-shaped paving system to simultaneously realize welding, nondestructive testing and coating operation of three two-node pipes, so that the paving efficiency is greatly improved; and after the nondestructive monitoring, the unqualified welding parts can be repaired in time, so that the paving process is simplified, and the paving cost is reduced.