Armored cable type temperature measuring platinum resistance or thermocouple that can be used for 5000 meter deep wells. Thermocouple temperature measurement, armored cable specification of φ 4.2, withstand voltage of 60MPa. Platinum resistance temperature measurement is connected to JW-T-4100-Z instrument, with a measurement accuracy of ≤ 0.1 ℃ and a response speed of ≤ 2 seconds (with a diameter change of 3mm at the temperature measuring end); Thermocouple temperature measurement is connected to JW-T-4100R instrument, with measurement accuracy ≤ 0.2 ℃, response speed ≤ 1 second, temperature measurement range: 0-300 ℃ (temperature measuring end variable diameter is 2.2mm).