Provided is a dysphonia treatment implement used for treating incomplete glottal closure by incising a window shape in the thyroid cartilage and moving affected vocal cords to the inside while bypassing the incised thyroid cartilage, the dysphonia treatment implement having a titanium plate as a fixing part for fixing at one end thereof to the thyroid cartilage, and a main body part capable of bending along bend lines drawn in at least two locations.