The utility model discloses an infrared temperature measuring device that power equipment is wireless in relay protection field, both can also can be at runing rest and infrared control terminal of vertical plane internal rotation at horizontal plane including one, be equipped with a container on the top surface of runing rest, be equipped with infrared camera, data acquisition module, wireless communication module and data processing module in the container, data acquisition module includes: the gray sensor matrix of constituteing by a plurality of gray sensor, adc, with gray sensor matrix connection, the adder, with adc connects, the multiplier, with the adder is connected, the comparator, with adc connects, data acquisition module includes: first subtracter and second subtracter, first subtracter with the second subtracter is all connected adc among the data acquisition module.