A sheet discharging device discharges a sheet to a sheet tray on which the sheet is to be placed. The sheet discharging device includes a discharge path configured to discharge the sheet to the sheet tray, a discharging portion arranged in the discharge path and configured to discharge the sheet passing along the discharge path to the sheet tray, and a pressing member capable of changing a posture between a hanging posture where the pressing member hangs down from a pivot center above the discharge path so as to block the discharge path for the sheet and a retracted posture where the pressing member is pivoted in a discharging direction about the pivot center to open the discharge path by receiving a pressing force in the discharging direction from the sheet. The pressing member includes an attaching portion to which a weight member having a predetermined weight is attachable.