The invention discloses a power operation single-person work effective monitoring intelligent video recognizing method which includes utilizing a front end camera to collect a video image; decompressing the collected video image and decomposing the image into a YUV picture; converting the YUV picture into an RGB picture; comparing the picture of the back frame and the picture of the previous frame, updating background environment in real time by utilizing self learning and extracting movable target objects-referring in particular to persons from the background environment; tracking and counting the target objects after the target objects are locked and judging whether single-person work exists. By means of the method, the power operation single-person work condition can be recognized conveniently and timely, the power operation site can be monitored uninterruptedly, and single-person work condition can be effectively removed. The method is mainly used for intelligent video analysis and used for detecting whether single-person work condition exists in the power operation site.