Marine ice-resisting type protection structure for rudder device

The invention discloses a marine ice-resisting type protection structure for a rudder device. The marine ice-resisting type protection structure for the rudder device comprises hull planking and a rudder horn, wherein a tail ice knife is arranged behind the rudder horn, the tail ice knife is welded to the hull planking, and the tail ice knife and the rudder horn are connected into a whole. Compared with the prior art, the marine ice-resisting type protection structure for the rudder device has the advantages that the marine ice-resisting type protection structure is a steel casting, can play a role in protecting the rudder device on the tail portion, and can also play a role in icebreaking in the sailing process; the marine ice-resisting type protection structure is designed to be of a knife shape so that resistance caused by a protection device in the ship sailing process can be reduced.