Abstract: The article introduces foreign metering technology of natural gas pipelines, application actualities of flowrate metering and calibration technology of natural gas, development trend and the newest metering standard of gas, forecasts the developing tendency of flowrate metering technology of natural gas pipeline at present. Also, systematical metering standards about orifice flowmeter, turbine flowmeter, ultrasonic flowmeter and the standard about property parameter analysis as well as energy metering standard of natural gas are introduced.