An external airbag device is proposed. The external airbag device includes: a housing located in a bumper and securely coupled to a vehicle; and an airbag cushion disposed inside the housing in a folded state, and configured to be deployed outwardly from the housing and the bumper when gas is injected thereinto, wherein the airbag cushion is configured to be deployed to be inclined while a contact surface thereof brought into contact with an external obstacle colliding with the vehicle is deployed.