Ultrahigh-temperature plastic pipeline fire resistance test platform

The invention discloses an ultrahigh-temperature plastic pipeline fire resistance test platform which comprises a test box, a temperature sensing system and a gas device, supporting devices and a flaming table are arranged in the test box, and the supporting devices are arranged on the two sides of the flaming table and used for supporting a test sample pipe; the temperature sensing system comprises a temperature sensing processor and a temperature sensing rod, the temperature sensing processor is arranged outside the test box, one end of the temperature sensing rod penetrates into the test box and extends to the flaming table, and the other end of the temperature sensing rod transmits sensing data to the temperature sensing processor; the fuel gas device is positioned outside the test box, is connected with the flaming table through a gas pipeline and supplies energy to the flaming table; a control box is arranged on the outer side wall of the test box, the control box is in control connection with the tempe