In　the　past　several　decades,　many　literatures　have　emerged　on　the　topic　of　phase　change　material　and　latent　heat　storage　techniques　used　in　building.　Accordingly,　it　is　essential　to　review　previous　work　to　know　about　phase　change　material　application　in　building　better.　This　article　presents　a　review　on　phase　change　material　application　situations　in　building,　and　several　aspects　are　discussed:　phase　change　material　major　applications　in　building,　phase　change　material　application　areas,　phase　change　material　application　types,　phase　change　material　thermal-physical　properties,　and　phase　change　material　application　effects.　The　results　of　this　research　show　that　phase　change　material　application　areas　are　mainly　concentrated　into　four　parts　of　north　latitude　from　25　degrees　to　60　degrees　and　south　latitude　from　25　degrees　to　40　degrees.　No　matter　in　which　region,　the　use　of　paraffin　is　the　broadest　(the　maximum　use　frequency　is　up　to　87.5%).　For　organic　phase　change　material,　the　melting　temperature　and　the　heat　of　fusion　vary　from　19　degrees　C　to　29　degrees　C　and　from　120　kJ/kg　to　280　kJ/kg,　respectively.　The　best　phase　change　material　application　effect　found　is　a　reduction　of　4.2　degrees　C　for　air　temperature　in　room.　This　study　has　important　and　directive　significance　for　the　practical　application　of　phase　change　material　in　building.