Abstract: A cannula plugging device for rehabilitation after tracheotomy relates to the field of medical devices. The cannula plugging device includes a plugging device bracket. An outer wall of the plugging device bracket is fitted with a ring-shaped outer airbag. An inner wall of the plugging device bracket is fitted with a ring-shaped inner airbag. Two inflation tubes connecting the outer airbag and the inner airbag respectively are fitted on the plugging device bracket. The present invention makes the outer airbag and the inner wall of tracheotomy cannula pressed together by inflating the outer airbag. By gradually inflating the inner airbag and adjusting the size of the inner diameter of the lumen, the opening of the trachea gradually changes, so that the patient can gradually adapt to the process of plugging the cannula.