Abstract: An integrated smart sensor device, which is installed on one of a fixing pole standing on a ground or a bottom surface of facility, a fixing arm extending from the fixing pole in a horizontal direction, or a lighting device installed on the fixing arm and in which a plurality of sensors are installed, according to an embodiment of the present invention includes: a base; a main substrate which is disposed on one surface of the base and on which a plurality of electric components are mounted; a sensor substrate disposed on one surface of the main substrate; an infrared sensor assembly mounted on the sensor substrate and including a plurality of infrared sensors configured to detect movement of an object; a housing coupled to an edge of the base to accommodate the main substrate and the sensor substrate; a lens cover coupled to one side of the housing and having a hemispherical shape in which a plurality of lens arrays are provided; and a hemispherical divider disposed between the lens cover and the infrared sen