This　study　investigated　the　performance　of　an　integrated　collector　storage　solar　air　heater　based　on　latent　heat　storage　and　flat　micro-heat　pipe　arrays.　The　structure　and　working　principle　of　the　device　were　explained　in　detail.　The　effective　area　of　the　collector　is　0.93　m2,　and　the　mass　of　the　phase　change　material　(PCM)　is　45.8　kg.　An　integrated　collector　storage　experimental　system　was　set　up,　and　outdoor　experiments　were　conducted　to　demonstrate　the　feasibility　of　the　device　for　energy　storage　and　air　heating.　The　temperature　distribution　of　the　PCM　was　recorded　during　charging　and　discharging　to　monitor　the　propagation　of　the　melting　and　freezing　front.　Efficiency　and　power　during　charging　and　discharging　were　also　calculated.　The　integrative　device　exhibited　59%　and　91.6%　efficiencies　for　solar　air　charging　and　discharging　at　393　and　344W　power,　respectively.　(C)　2017　Elsevier　B.V.　All　rights　reserved.