Abstract: Based on the analysis of design principle of mine-used temperature sensors, combined with design requirements of General Technical Conditions of Mine Temperature Sensor,we design mine-used intrinsic safety type temperature sensor with self-calibration function, and the sensor is based on ARM as the core processor and platinum resistor as temperature measuring element. Temperature sensor, with the capacity of continuous real-time monitoring, real-time display, overrun acousto-optic alarm, frequency communication, remote signal transmission, has the advantages of high accuracy, calibration-free.