Direction Control Apparatus for Ship

The present invention relates to a direction control apparatus for a ship. In relation to the ship equipped with a propeller, the disclosed direction control apparatus for the ship comprises a rudder which protrudes from the rear of the ship and locates in the back of the propeller; and a duct unit comprising a first duct which is combined to the left side of the rudder and provides a first space where water flow created from the rear of the propeller passes by, and a second duct which is combined to the right side of the rudder and provides a second space where water flow created from the rear of the propeller passes by.