To provide a turning mechanism to be used in a crane for ship and life-saving equipment, configured to enable quick manual turning operation even in emergency operation at power failure.

This turning mechanism of the crane for ship and the life-saving equipment includes a fixed post 1, a turning plate 4 mounted on the fixed post 1 to turn a turning bearing 3, and a turning speed reducer 11 for turning the turning plate 4. The turning speed reducer 11 includes a first gear box 17 having spur gears and including a plurality of manual handle shafts, and a second gear box 18 connected to the first gear box 17 and including worm gears.