Provided is a monitoring apparatus including a communication unit which receives streaming data and metadata of a video from each of a plurality of cameras installed indoors when the cameras obtain videos by capturing specific areas, respectively; a metadata analysis unit which analyzes the received metadata and extracts information about an event that occurred; a video selection unit which selects a video containing an area in which the event occurred from the videos based on the extracted information about the event; and a screen unit which receives the selected video from the video selection unit and immediately displays the received video when the monitoring apparatus is operated.