Abstract: Under the general program of the State for development of nuclear power industry,the construction of nuclear power plants are now at a stage of rapid development. Nevertheless the localization of production of the equipment for large-scale nuclear power plants is at a relatively low level. Taking the domestic 1 000 MW nuclear power generation plant as an example,the steel tubular materials for nuclear power plant with pressurized & water-cooled reactor system are analyzed in a bid to offer some help for production localization of the said steel tubular materials,particularly for the badly-needed standardization of nuclear power generation service materials.