Method and device for data processing of video monitoring system

The invention discloses a method and a device for data processing of a video monitoring system. The method for the data processing of the video monitoring system comprises the following steps of after video is collected in real time, receiving a video collecting range command sent by a client; according to the received video collecting range command, cutting the collected video; encoding the cut video, and sending the encoded video to the client. The method for the data processing of the video monitoring system has the advantages that according to the video collecting range command sent by the client, the size and angle of video collection are adjusted within certain range; in addition, the encoded image is the video which is encoded according to the video collecting range command sent by the client, and the unnecessary video of a user is cut off, so the beneficial effects of saving network resource and reducing storage cost are realized.