The　form-stable　phase　change　material　(PCM),　polyethylene　glycol　(PEG)/ZnMgAl-mixed　metal　oxides　(MMO),　is　prepared　as　a　performance-enhancing　additive　of　bitumen.　In　PEG/MMO　PCM,　PEG　exhibits　the　phase-change　function　while　ZnMgAl-MMO　acts　as　the　support　carrier　to　prevent　leakage　of　liquid　PEG　during　phase　transition.　The　properties　of　PEG/MMO　PCM　were　analysed　by　XRD,　SEM,　FTIR,　DSC,　TG　and　UV-vis　spectrophotometry.　The　results　showed　that　the　maximum　PEG　confined　by　MMO　could　be　65%　and　65PEG/MMO　PCM　exhibited　good　thermal　and　chemical　stability,　sufficient　phase　change　enthalpy　and　excellent　UV　absorption　properties.　Furthermore,　the　temperature　regulation　and　UV　ageing　resistance　of　PEG/MMO　PCM　modified　bitumen　was　evaluated　by　the　thermal　storage　and　release　test　and　accelerated　UV　aging　test.　As　a　new　type　of　performance-enhancing　additive,　PEG/MMO　PCM　is　expected　to　be　effective　in　regulating　extreme　temperature　and　resisting　UV　aging　of　bitumen　and　thus　significantly　extending　the　service　life　of　bitumen　pavement.