The invention provides a multifunctional ocean pipeline laying ship, belongs to the technical field of ocean engineering and relates to ocean engineering equipment. By adopting the multifunctional ocean pipeline laying ship, ocean pipelines are hard to lay in the prior art is solved. According to the multifunctional ocean pipeline laying ship, a sectional pipe conveying chain is arranged from a construction ship to the seafloor; sectional pipe guide joints are arranged on the conveying chain from top to bottom; the end, located at the seafloor, of the conveying chain is connected with a butting rotary disk. A first connecting rotary disk is arranged behind the butting rotary disk. The butting rotary disk is connected with the first connecting rotary disk through a parallel control mechanism composed of telescopic cylinders. A rotation driving mechanism used for controlling two connecting rotary disks to rotate relatively is arranged between the first connecting rotary disk and the second connecting rotary disk. The first connecting rotary disk and the second connecting rotary disk are connected through a telescoping control mechanism. By adopting the multifunctional ocean pipeline laying ship, overhanging sections of pipelines are avoided, and potential safety hazards caused by mutual action between the pipelines and a ship body are avoided.