Solar　storage　efficiency　of　solar　greenhouse　wall　during　the　daytime　is　directly　related　to　the　construction　of　greenhouse　wall　layers　and　thermal　properties　of　wall　materials　(thermal　resistance,　heat　capacity,　density　etc.).　Two　composite　phase　change　heat　storage　wallboards　(mixed　block　and　intercalation　block)　building　by　different　methods　were　developed　in　this　study.　Mixed　block　was　made　by　directly　mixing　the　phase　change　materials　(PCM)　with　cement　mortar,　and　intercalation　block　was　made　by　intercalating　PCM　into　two　cement　mortar　layers.　The　thermal　properties　under　charge　and　discharge　process,　and　the　heat　transfer　performance　of　the　two　structures　had　been　studied　by　the　comparison　experiment.　The　results　showed　that,　under　the　same　charge　and　discharge　conditions,　the　mixed　block　completed　heat　storage/release　in　70　min,　which　was　earlier　than　the　intercalation　block;　the　heat　storage/release　amount　of　mixed　block　was　10%/15%　more　than　that　of　the　intercalation　block.　A　better　thermal　performance　could　be　achieved　by　using　the　directly　mixed　way.　The　conclusion　provides　the　reference　for　the　scientific　application　of　phase　change　thermal　storage　technology　in　solar　greenhouse.