The utility model provides a big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device, including vapour and liquid separator, imported shut -off valve is installed to vapour and liquid separator's entrance point, and vapour and liquid separator's top exit end is connected with first pipeline, is equipped with natural gas flowmeter, natural gas export shut -off valve on the first pipeline, the bottom exit end is connected with the second pipeline, is equipped with profit shut -off valve, profit mass flow meter and electric control valve on the second pipeline, first pipeline and second pipeline join back and the 6th pipeline connection, are equipped with gas -liquid mixture export shut -off valve on the 6th pipeline, vapour and liquid separator, first pipeline, second pipeline, the 6th pipeline and import shut -off valve all install on the sledge seat. Splitter, measuring equipment and auxiliary line are all integrated on a sledge seat, the convenient removal and the installation, and through the integrated design of skid -mounted ization, can realize continuous metering, and reduce equipment investment cost, also can realize high -efficient accurate lumbricine gas -producing well simultaneously and test the separation measurement.