Abnormal behavior detection method and device

The invention provides an abnormal behavior detection method and device, and the method comprises the steps: determining at least one monitoring region in advance, and storing at least one abnormal behavior feature corresponding to each monitoring region; for each current monitoring area in the at least one monitoring area, obtaining a monitoring video of at least one pedestrian moving in the current monitoring area; for each current pedestrian in the at least one pedestrian, extracting at least one current behavior feature of the current pedestrian from the monitoring video; determining whether the behavior of the current pedestrian is abnormal or not according to at least one abnormal behavior feature and the at least one current behavior feature corresponding to the current monitoring area; when the behavior of the current pedestrian is abnormal, obtaining identity information of the current pedestrian; and storing the identity information and an abnormal monitoring video, wherein the abnormal monitoring v