The voice assisting device is provided with an air supply portion for supplying air, a vibration imparting portion for giving vibration to the air, a transfer pipe for receiving the air to which the vibration is applied, and an air supplied from the inside of the incoming pipe to the outside of the transmission pipe and supplied to the outside of the oral cavity Includes an air outlet portion to be provided.発声補助装置は、空気を供給する空気供給部と、前記空気に振動を与える振動付与部と、前記振動が与えられた空気を口腔内に送入する送入管と、前記送入管に設けられ、前記送入管の内部から前記送入管の外部かつ前記口腔の外部へ前記供給された空気を流出させる空気流出部と、を備える。