As a medium-sized professional gas supply fire truck, its core function is to provide stable and efficient high-pressure air supply for fire rescue sites, adapting to various enclosed spaces and high-risk environmental rescue scenarios. Equipped with a high-power high-pressure air compressor, the rated displacement and pressure are compatible with the 90 type specification, which can quickly compress the air to a high-pressure state. At the same time, multiple sets of high-pressure gas cylinders are equipped to achieve the storage and continuous supply of high-pressure air, meeting the needs of multiple personnel and long-term rescue on site. Supporting multiple interfaces for simultaneous gas supply, it can directly provide stable gas source for fire-fighting equipment such as air respirators, pneumatic dismantling tools, and pneumatic leak sealing equipment, solving the problem of insufficient gas source and gas supply interruption at the rescue site, ensuring the respiratory safety of rescue personnel and the normal operation of rescue equipment, especially suitable for rescue operations in oxygen deficient, toxic and harmful environments such as underground garages, tunnels, mines, and enclosed factories.