A robot cleaner comprising: a cleaner body including a control unit configured to control autonomous driving; a sensing unit disposed in an upper edge portion of the cleaner body to be inclined with respect to a side surface and an upper surface of the cleaner body, and adapted to capture a side direction and an upper direction of the cleaner body; and a bumper disposed to cover at least part of the cleaner body, and configured, at the time of coming into contact with an obstacle, to be pressed and absorb impact, wherein the sensing unit is disposed behind the bumper, characterized in that the sensing unit comprises a first camera part and a second camera part respectively disposed in one side and another side of the upper edge portion of the cleaner body in an inclined manner, and adapted to capture the side direction and the upper direction of the cleaner body, wherein the first camera part comprises: a first camera; a first window disposed to cover the first camera; and a first case mounted to the cleaner body configured to fix the first camera and the first window, the first case defining a hermetic space together with the first window configured to seal the first camera, and wherein the second camera part comprises: a second camera; a second window disposed to cover the second camera; and a second case mounted to the cleaner body configured to fix the second camera and the second window, the second case defining a hermetic space together with the second window configured to seal the second camera, and wherein the first window and the second window comprise a first filter and a second filter, respectively, through which an infrared region selectively passes. a cleaner body including a control unit configured to control autonomous driving; a sensing unit disposed in an upper edge portion of the cleaner body to be inclined with respect to a side surface and an upper surface of the cleaner body, and adapted to capture a side direction and an upper direction of the cleaner body; and a bumper disposed to cover at least part of the cleaner body, and configured, at the time of coming into contact with an obstacle, to be pressed and absorb impact, wherein the sensing unit is disposed behind the bumper, characterized in that the sensing unit comprises a first camera part and a second camera part respectively disposed in one side and another side of the upper edge portion of the cleaner body in an inclined manner, and adapted to capture the side direction and the upper direction of the cleaner body, wherein the first camera part comprises: a first camera; a first window disposed to cover the first camera; and a first case mounted to the cleaner body configured to fix the first camera and the first window, the first case defining a hermetic space together with the first window configured to seal the first camera, and wherein the second camera part comprises: a second camera; a second window disposed to cover the second camera; and a second case mounted to the cleaner body configured to fix the second camera and the second window, the second case defining a hermetic space together with the second window configured to seal the second camera, and wherein the first window and the second window comprise a first filter and a second filter, respectively, through which an infrared region selectively passes. a first camera; a first window disposed to cover the first camera; and a first case mounted to the cleaner body configured to fix the first camera and the first window, the first case defining a hermetic space together with the first window configured to seal the first camera, and wherein the second camera part comprises: a second camera; a second window disposed to cover the second camera; and a second case mounted to the cleaner body configured to fix the second camera and the second window, the second case defining a hermetic space together with the second window configured to seal the second camera, and wherein the first window and the second window comprise a first filter and a second filter, respectively, through which an infrared region selectively passes. a second camera; a second window disposed to cover the second camera; and a second case mounted to the cleaner body configured to fix the second camera and the second window, the second case defining a hermetic space together with the second window configured to seal the second camera, and wherein the first window and the second window comprise a first filter and a second filter, respectively, through which an infrared region selectively passes.