Deep water pipe laying engineering ship

The invention discloses a deep water pipe laying engineering ship. The deep water pipe laying engineering ship comprises a superstructure and an outdoor working deck, wherein the superstructure is distributed at the bow of a hull; the outdoor working deck is distributed at the middle part and the tail of the hull; the middle part of the hull also comprises a moon pool; a drum and a vertical type pipe laying tower are detachably mounted on the surface of the deck; the drum is used for storing pipelines; the vertical type pipe laying tower comprises a tower frame formed by a set of box type structures, and pipe laying equipment including an aligner, a centralizer, a tensioner, a workstation, a pipe abandon collecting device and the like are arranged in the tower frame, and a base connected with the deck is hung to the bottom of the tower frame; and a set of oblique supporting rods are arranged in the middle part of the tower frame, are connected with the tower frame body to be herringbone, and the angle of the