The utility model relates to a higher electric power of security overhauls security isolation net belongs to the technical field that electric power overhauld, the problem of the technique is solved for: the utility model provides a simple structure, implementation convenience can prevent the electric power maintenance security isolation net in the electrified region of maintainer mistake income, the technical scheme who adopts does: a higher electric power of security overhauls security isolation net, includes: be in both ends, symmetry setting and the same rail pole of structure, two the bottom of rail pole all is provided with the base, is provided with the connecting rod between the two rhizosphere railings, it is equipped with the purse seine to hang on the connecting rod, the both ends of connecting rod are continuous with the upper portion of two rhizosphere railings respectively, every be provided with the draw -in groove on the base, the base is connected with vibration sensor device through the draw -in groove, the last alarm that is provided with of vibration sensor device, vibration sensor device has the remote controller through the wireless communication internet access, be provided with the start -up button that is used for making the alarm send alarm sound on the remote controller, be used for making the alarm to close alarm sound's the button that stops, the device is suitable for the electric power system.