For　complex　constructed　foil　bearing,　it　is　difficult　to　theoretically　analyze　and　apply　to　high　speed　rotation　machinery.　Three　types　of　compliant　foil　bearing,　including　plate　foil　bearing,　viscoelastic　support　foil　bearing　and　foil　bearing　with　convex　dots,　are　proposed　and　investigated.　On　a　test　rig　of　high　speed　turbo　machinery,　the　bearing-rotor　system　is　driven　by　gas　turbine,　and　the　load　capacity　of　foil　thrust　bearings　is　analyzed　by　hydrostatic　gas　bearing　supporting　and　applying　axial　load.　To　discuss　the　running　stability　of　foil　thrust　bearings,　fast　Fourier　transform　is　chosen　to　analyze　the　vibration　signals　of　bearing-rotor　system.　The　results　show　that　plate　foil　thrust　bearings　have　the　highest　load　capacity　of　44　N,　the　rotor　obit　of　bearing-rotor　system　gets　stable.　The　fundamental　frequency　is　dominated　in　frequency　domain,　and　the　lower　and　higher　frequencies　can　be　ignored.