Abstract:At present, the field safety monitoring relies on the professionals to monitor the surveillance video throughout the process, and the manual detection method is very timeconsuming and prone to false alarms, which is difficult to ensure the personal security during the operation. In order to realize the intelligent recognition of human behaviors in power operation field, an OpenPosebased method for detecting dangerous behaviors of electric power workers is proposed. This method extracts the key point information of electric workers′ skeletons from the video stream images, and uses deep neural network to realize human behavior situation awareness in multiperson scenarios, which can realize the realtime detection of construction personnels′ illegal behavior and issue early warning. The proposed method realizes the accurate and realtime safety monitoring of human behaviors in power operation field, and guarantees the personal security in the field and the smooth progress of power operation, and the model has a good robustness and generalization ability.