To provide a pod propelling device capable of restraining the occurrence of unstable cavitation, and capable of restraining the occurrence of hull vibration and cavitation erosion when the pod propelling device turns, by making a substantially bilaterally symmetrical flow in a propeller surface of the pod propelling device, by making the center line of its propeller surface coincide with the center line of a hull even when the pod propelling device turns.

This pod propelling device 1 is constituted of a column 4 slantingly suspended and arranged backward or forward from a stern part of a ship 100, a pod body 2 arranged in a lower end part of the column and a propeller 3 arranged in a bow part of the pod body, and is arranged in a position where the center line of the propeller surface 8 of the propeller of the pod body, substantially coincides with the turning center 5 of the pod body.