Three-dimensionally　connected,　pore-adjustable,　high-porosityAl(2)O(3)　foam　(AF)　and　graphite　in　situ　modifiedAl(2)O(3)　foams　(GAFs)　were　prepared　by　using　theparticle-stabilizedemulsion　as　a　template.　A　graphite　layer　was　coated　on　the　surfaceof　Al2O3　particles　by　using　sucrose　as　a　carbonresource,　preventing　PEG　leakage　and　improving　the　thermal　conductivity.After　encapsulating　PEG　with　AF　and　GAF,　we　obtained　a　series　of　stabilizedcomposite　phase　change　materials　(sPCMs).　The　melting　enthalpy　ofPGAF　can　reach　up　to　152.4,　which　is　27.2%　higher　than　that　of　PAF.The　thermal　conductivity　of　PGAF　30　is　0.79　W/(m　K),　which　is　1.47times　that　of　PEG,　and　the　light-to-heat　conversion　efficiency　canreach　81.31%.　The　prepared　sPCM　has　broad　application　prospects　insolar　energy　utilization,　waste　heat　recovery,　building　energy　saving,and　power　peak　regulation.