With　unique　design　concept,　high　entropy　alloy　coating　has　excellent　mechanical　properties　and　physical　and　chemical　properties　superior　to　traditional　alloy　coating,　and　high　entropy　alloy　coating　has　strong　application　potential　in　many　fields,　which　has　attracted　extensive　attention　of　researchers.　In　this　paper,　the　recent　research　progress　of　main　preparation　technology　of　high　entropy　alloy　coating　was　reviewed,　including　laser　cladding　technology,　thermal　spraying　technology,　cold　spraying　technology,　magnetron　sputtering　technology,　electrochemical　deposition　technology　etc.　The　advantages　and　disadvantages　of　each　preparation　technology　and　the　performance　characteristics　of　the　high　entropy　alloy　coating　were　analyzed　in　detail,　and　the　problems　in　the　research　process　of　high　entropy　alloy　coating　at　present　were　put　forward,　which　provided　reference　and　guidance　for　the　follow-up　research,　application　and　development　of　high　entropy　alloy　coating.