The utility model relates to a high-temperature coil. The high-temperature coil comprises a main body and a first insulating tape wound on the periphery of the main body, The main body comprises a second insulating tape and multiple layers of coil bodies which are sequentially wound on the periphery of the second insulating tape; a third insulating tape is wound on the periphery of each layer of coil body; And the multi-layer coil body is formed by winding a winding wire on the second insulating tape. The coil provided by the utility model is high in high-temperature-resistant grade, can normally work at 350 DEG C or higher, can cancel a ventilation and heat dissipation device arranged at the top of a reactor, can meet the requirements through natural ventilation and cooling, simplifies equipment, reduces the cost, and improves the safety coefficient of a control rod driving mechanism of the reactor at the same time.