At present, the thermocouple quantity transfer system above 300℃ has the problems that measurement uncertainties are too large and measurement capability does not satisfy the need. The new quantity transfer system based on fixed point temperature measurement was put forward on the basis of the latest development of high temperature eutectic point and practical fixed point temperature measurement, pure metal thermocouple temperature measurement, and thermocouple calibration technology above 1500℃. The new transfer system can greatly reduce the thermocouple measuring value uncertainty, guarantee the quantity value transfer of each grade normally, and meet thermocouple traceable requirements.