The invention relates to a membrane vibrating discharging mechanism. The membrane vibrating discharging mechanism comprises a membrane material tearing plate and a membrane material collecting plate.A locating piece is arranged on the membrane material collecting plate, and a vibrator is arranged on the locating piece, enables the locating piece to slightly swing and is used for preventing membranes from curling. According to the membrane vibrating discharging mechanism, the vibrator is arranged on the locating piece, the locating piece can slightly swing in a high-frequency mode under the action of the vibrator, and therefore when the locating piece encounters the membranes which deflect, due to the fact that the locating piece slightly swings in the high-frequency mode, the membranes can be quickly corrected and clamped, and do not need to be manually adjusted, and the processing efficiency is improved.