Abstract: This invention discloses a system and method for detection of foreign object debris (FOD) on the areas of including but not limited to the airport runways, taxiways, aprons and adjacent areas. The invention makes use of single or multiple passive optical sensors monitoring the areas for signal acquisition, a database and a processing unit to further analyze the captured optical signal in order to detect the presence; and in case of the detection of the foreign debris in various threat levels, creating an alert for the removal thereof; depending on variables such as the estimated area and foreign object size and visual characteristics.