The invention discloses a nitrogen supercharging vehicle which comprises a chassis, a chassis girder and chassis auxiliary beams, wherein the chassis is provided with an upload prying case body; the chassis girder is fixedly connected with the chassis auxiliary beams; the chassis auxiliary beams are fixedly connected with the upload prying case body; supercharging equipment is arranged in the upload prying case body; and the supercharging equipment comprises a gas inlet pipeline, a primary steam separator, a secondary steam separator, a tertiary steam separator, a supercharger, a diesel engine, a composite cooler, a gas exhaust pipeline and a control system. The whole equipment has the advantages of convenient and quick operation and maintenance, high work efficiency, high degree of automation control, energy saving, environmental protection, low requirements for working conditions, and convenient management, and provides a convenient high-pressure high-flow gas source for oil field drilling, gas exploitation and other related fields.