A vocalization appliance for assisting vocal cord closure training includes: an inner arc plate, an outer arc plate, and two partitions which are oppositely disposed, wherein the inner arc plate is opposite to the outer arc plate, and the two partitions are placed with an interval between the inner arc plate and the outer arc plate； the two partitions, the inner arc plate and the outer arc plate are enclosed to form an accommodating cavity, and the accommodating cavity is separated into an upper accommodating room and a lower accommodating room along a height direction； the upper accommodating room accommodates upper incisors while the lower accommodating room accommodates lower incisors； opposite side ends of the inner arc plate respectively extend away from the accommodating cavity, and opposite side ends of the outer arc plate also respectively extend away from the accommodating cavity, thereby separating mouth corners.
