Bulk metallic glasses, as new alloy materials with important and potential value, are being applied actively into industrial applications. Microgravity researches on the bulk metallic glasses not only involves some important fundamental issues, such as glass transition and formation mechanisms, thermodynamic and kinetic behaviors of undercooled liquids, and nucleation and growth of crystals in supercooling liquids, but also to promote practical applications of the special materials. This paper is a survey, with particular emphasis on thermophysical measurements containing specific heat capacity, viscosity and surface tensions in stable and undercooled liquids, and undercooling ability and glass formation of metallic glass formers under microgravity conditions by utilizing containerless processing and fluxing techniques over the past thirty years, in which outlook of the study on bulk metallic glass under microgravity in space is proposed.