Prison security high-voltage fence

The invention discloses a prison security high-voltage fence, which is provided with a steel strand power grid cable, a boosting transformer, an electric shock protector, an alarm bell, a time-delay relay and a resetting relay. Because of the adoption of the principle of the mutual driving of the boosting transformer and the electric shock protector in the invention, when touching the high-voltage fence, a prisoner falls without death due to electric shock. Moreover, because of the adoption of the microcomputer time-delay relay, which transmits power by 2 seconds delay after electric shock until prison guards sortie, the unsafe defects of easy touch and easy cross of the traditional low-voltage fence are completely overcome.