To use a turning propeller at steering time so as to attain reduction of underwater noise, while particularly a high output can be generated in a propeller for propulsion, relating to a ship with turning propellers suited by using it for an oceanic research ship or the like using an underwater acoustic equipment.

A propeller 1 for propulsion capable of generating a high output is arranged in a stern center part, also in a lower end of a strut 3a protrusively provided downward fro a hull 2 respectively in hull both side parts in the rearward from this propeller 1, steering use turning propellers 3 capable of 360° turning around a perpendicular axisl line are arranged, while reducing underwater noise lower than the conventional tunnel type side thruster by the propellers 3, efficient steering of a ship can be attained.