Distributed oil well temperature measuring optical cable is a temperature measuring optical cable specially designed for oil well production temperature measurement. It is a sensing optical cable used to measure the temperature distribution of the oil well formation. This optical cable uses three layers of metal materials to protect the high-temperature optical fiber, so that the optical cable has relatively strong high-temperature and high-pressure resistance, corrosion resistance, and unparalleled hydrogen resistance, which is suitable for various complex natural environments in the oil well, It is a special temperature measuring optical cable for oil wells in oil fields.