A　new　type　of　flat　pipe　as　the　heat　transfer　component　was　used　in　latent　heat　thermal　energy　storage　system.　And　a　set　of　flat　pipe/PCM　phase　change　thermal　storage　was　designed　and　manufactured.　Paraffin　was　adopted　as　phase　change　material,　and　a　series　of　experiments　about　melting　and　solidification　of　the　storage　system　were　performed.　With　the　temperature　distribution　of　paraffin　obtained　from　the　experiments,　the　analysis　of　the　effects　of　the　inlet　water　temperature　on　the　charging　and　discharging　process　were　carried　out.　The　homogeneous　distribution　of　temperature　and　the　efficiency　of　the　system　were　also　analyzed.　The　results　showed　that　the　new　flat　heat　pipe　thermal　storage　system　works　well　in　the　experiment.