The utility model discloses a high tension switchgear infrared monitoring device, including power unit and connected test section, control section and warning part, test section and control section pass through the connection of electric lines, control section passes through wireless connection with the part of reporting to the police, detection device is including setting up the infrared detector in the inside arbitrary adjacent three corner of cubical switchboard, control section is including the controller that interconnects, the accumulator, wave filter and amplifier, alarm device includes audible -visual annunciator and is connected with electric power monitoring system, arbitrary two of three infrared detector interconnects and forms X, Y, the Z axle, audible -visual annunciator sets up on high tension switchgear, alarm device is connected through the wireless mobile terminal who carries with personnel, the utility model discloses it forms the three maintenance survey to high tension switchgear to set up three infrared detector in different position to can show the concrete position at trouble place, make things convenient for personnel to overhaul, the personnel that have saved carry on at the scene time that inspection and repair depot needs, improve work efficiency.