The invention relates to an immersed tube tunnel tube section floating transportation ship organizing method. Immersed tube section floating transportation towing ships use azimuthing towing ships; partial towing ships are used for towing at the side edges of immersed tube sections; and the other part of the towing ships are used for towing at the front ends and back ends of the immersed tube sections; and propellers of the side towing ships must protrude out of the ends of the immersed tube sections. Through adoption of the ship organizing method provided by the invention, great water current force can be effectively resisted when the tube sections are against the stream with cross sections or longitudinal sections, the immersed tube section floating transportation work can be smoothly carried out and the immersed tube section floating transportation window period is greatly prolonged; due to small total width of the towing formation, the towing formation can pass through narrow channels and bridge navigation holes; and due to good control performance, the towing formation can carry out immersed tube section floating transportation within channels with small turning radii.