Alarm video acquisition method and device

The invention relates to an alarm video acquisition method and device. The method comprises the following steps: firstly, performing video analysis on an original video stream, generating alarm starting information when a preset event occurs, and sending the alarm starting information to an alarm terminal, so that the alarm terminal records an alarm starting moment; when it is determined that thepreset event is ended, generating alarm release information and sending the alarm release information to the alarm terminal so that the alarm terminal records an alarm ending moment; receiving a to-be-analyzed alarm video sent by the alarm terminal, wherein the to-be-analyzed alarm video is intercepted from an original video stream of an acquisition terminal by the alarm terminal according to thealarm starting moment and the alarm ending moment; and identifying the to-be-analyzed alarm video according to the local processing resources to form a marked alarm video. The device does not need tosend the video stream to th