TC10f series optical fiber temperature measuring controller (hereinafter referred to as controller) is based on high-performance enhanced single-chip microcomputer system as the core, using fluorescent optical fiber temperature sensor, with other interface circuits, to achieve transformer/reactor windings and iron core temperature measurement, display and real-time monitoring. The optical sensor and signal transmission channel of the fluorescent fiber optic sensor have the characteristics of natural resistance to strong electromagnetic interference, with high reliability, good insulation performance, small size, long life and other characteristics, which fundamentally solve the defects of electrical, pressure and infrared temperature measurement systems, especially suitable for temperature monitoring and control of high voltage electrical equipment.