An outside protection apparatus includes: an outside airbag device including an expandable member expandable rearward from a front portion of a body of a vehicle so as to be overlaid on a hood of the body, and an inflator that expands the expandable member; a collision detector that predicts or detects a collision between the body and a outside person outside the vehicle; and a controller that expands the expandable member when the collision detector predicts or detects a collision. The expandable member includes: a front bag portion expandable at the front portion of the body so as to be overlaid on the hood; a rear bag portion expandable in a location closer to rear than the front bag portion; and a tensile member coupled together with the rear bag portion to the body. The rear bag portion is expandable by the tensile member to stand on the hood.