Hydrostaticdynamic gas lubrication technology has been applied widely in seal,bearing and air float transport for its characteristic of noncontacting,high bearing capacity and high gas film stability,etc.The basic structure and working mechanism of hydrostaticdynamic gas lubrication technology were introduced.The advance of hybrid gas lubrication was commented,and the optimal design of the restrictor structure,the theoretical research methods of hydrostaticdynamic gas lubrication technology,the dynamic characteristics and micro scale effects of hydrostatic gas seals/bearings were introduced.It was pointed out that it should be further explored for the design of controllable throttling structure and related theory and experimental research of hydrostaticdynamic gas lubrication,the dynamic characteristics and micro scale effects of hydrostaticdynamic gas lubrication at low speed are the focus of future research,and it is also the key to improve the performance and reliability of the static pressure gas lubricated structure.