The present discloses a semiautomatic finger protection device, which comprising a bumper positioned between an outer surface of the door and an doorpost when the door is closed, and positioned in a gap on the hinge side of the door when the door is opened; a securing member to position the bumper; and a connecting member having the two ends retractably connected with said bumper and said securing member respectively. The bumper has a flexible wrapping means received in the bumper to extend/retract the connecting member.