To provide an attached object removing device where the wear of a net is eliminated, safety is obtained without giving influence on a connecting part, etc., and also the removing operation of the attached object is secured concerning the removal of the attached object in the net used in set net fishing.

The device is provided with a lower part roller 19 which is disposed in a lower part roller stand 17 erected in the hull of a fishing boat so as to be freely rotation possible, a first supporting body 20 fitted by arrangement side by side with the lower part roller stand 17, the second supporting body 22 attached to the first supporting body 20 so as to be freely lateral- turning possible, an upper part roller 28 which is disposed in an upper part roller stand 26 hung down from the lower surface of an upper part supporting stand 24 being fixed to the second supporting body 22 so as to be freely rotation possible and pressurizing and adjusting mechanism 25 which is arranged on the upper surface of the upper part supporting stand 24 so as to pressurize the upper part roller stand 26 downwards. The net 4 is held between the lower part roller 19 and the upper part roller 28 so that the attached object of the net 4 is removed with the movement of the hull of the fishing boad 10.