One　challenge　to　the　precast　concrete　(PC)　building　industry　lies　in　the　ability　of　producing　PC　component　energy-efficiently.　Phase　change　material　(PCM)　to　store　thermal　energy　offer　a　considerably　higher　energy　density　at　a　nearly　constant　temperature　level.　Here　in　this　work,　we　proposed　a　design　of　solar　energy-streaming　curing　building　using　GH　series　PCM　as　the　inner　surface　of　the　wall.　To　screen　the　most　suitable　PCM　material,　we　used　Energy　Plus　software　to　simulate　the　inner　surface　temperature　of　the　wall　for　a　whole　year　and　heat　release　of　the　wall.　Based　on　the　analyzing　data,　GH-33　was　selected　as　the　optimal　PCM　and　a　PCM　wall　thickness　of　50　mm　was　determined.　This　study　provided　a　good　reference　for　energy-saving　PC　curing　technology.　(C)　2019　The　Authors.　Published　by　Elsevier　Ltd.