Abstract: Described here are the research and development achievements of the P92 seamless steel pipe and the characteristics of its production process.The results of the tests of hi-temperature tensile property and hi-temperature endurance property of the P92 seamless steel pipe indicate that the seamless steel pipe of this grade has homogeneous metallographic structure, and its mechanical properties and technological properties can fully satisfy the requirements of ASME SA 335/SA 335M and the application requirements of the high temperature boiler pipeline.