Use　solar　energy　as　a　complement　of　building　heating　energy,　not　only　the　building　consumption　will　be　reduced　but　also　the　air　pollution　problem　during　winter　can　be　improved.　However,　the　sparseness,　discontinuity　and　instability　of　the　solar　energy　are　bottleneck　of　solar　energy　utilization　technology.　Thus　the　thermal　storage　technology　becomes　the　most　important　part　in　solar　energy　system.　Phase　change　thermal　storage　technology　is　more　efficient　then　water,　and　it　can　charge　the　surplus　solar　energy　for　cloudy　days　to　improve　the　utilization　rate　of　solar　energy.　The　performance　of　solar　system　can　be　improved　by　using　phase　change　material　storage　technology.　This　review　summarizes　the　previous　study　on　phase　change　materials　storage　in　solar　energy　application;　the　content　of　this　paper　can　provide　a　reference　for　relative　studies.　©　(2014)　Trans　Tech　Publications,　Switzerland.