Armored thermocouples, as core sensors in the field of temperature measurement, occupy an important position in both industrial and civilian scenarios due to their outstanding performance. It is made by closely combining seamless metal sleeves, insulating materials and thermocouple wires through drawing process, and can quickly capture temperature changes under complex working conditions. Meanwhile, the product features excellent flexibility, allowing for free bending and winding. It breaks through the installation limitations of traditional straight-rod thermocouples and can closely fit the surface of irregular-shaped equipment or narrow Spaces. With irregular mechanical shaping, it meets the temperature monitoring requirements of complex scenarios.