High-temperature　phase　change　materials　(PCMs)　have　broad　application　prospects　in　areas　such　as　power　peak　shaving,　waste　heat　recycling　,　solar　thermal　power　generation.　They　address　the　need　for　clean　energy　,　improved　energy　efficiency,　which　complies　with　the　global　＂carbon　peak＂　and　＂carbon　neutral＂　strategy　re-quirements.　This　study　provides　an　overview　of　the　definition,　standards,　packaging　process,　and　current　state　of　high-temperature　composite　PCMs　based　on　their　significant　energy　application　potential,　economic　value,　and　environmental　value　process.　Finally,　the　future　development　of　high-temperature　composite　PCMs　is　summa-rized　and　prospected.