Refractory　high　entropy　alloys　have　broad　application　prospects　due　to　their　excellent　comprehensive　properties　in　high　temperature　environments,　and　they　have　been　widely　implemented　in　many　complex　working　conditions.　According　to　the　latest　research　reports,　the　preparation　technology　of　bulk　and　coating　refractory　high　entropy　alloys　are　summarized,　and　the　advantages　and　disadvantages　of　each　preparation　technology　are　analyzed.　In　addition,　the　properties　of　refractory　high　entropy　alloys,　such　as　mechanical　properties,　wear　resistance,　corrosion　resistance,　oxidation　resistance,　and　radiation　resistance　are　reviewed.　The　existing　scientific　problems　of　refractory　high　entropy　alloys,　at　present,　are　put　forward,　which　provide　reference　for　the　development　and　application　of　refractory　high　entropy　alloys　in　the　future,　especially　for　plasma-facing　materials　in　nuclear　fusion　reactors.