Abstract:At present, most air source systems for gas bearing test have low air pressure supply and in need small gas flow, so the pneumatic system is adopted which has small flow and slow change of pressure,which also leads to the smaller bearing capacity. The characteristics of the high pressure and large flow gas bearing were studied. Based on the LabVIEW platform, the test system of blowdown gas pipeline system for high pressure gas bearing trail was developed, which not only provided a good paltform for gas bearing, but also analyzed the characteristics of flow field of overall pipeline system by testing flow parameters during discharge of the intermittent air source. Reference is provided for design and development for other test platform of air source system.