This　paper　proposes　two　new　radiant　floor　heating　structures　based　on　micro　heat　pipe　array　(MHPA),　namely　cement-tile　floor　and　keel-wood　floor.　The　numerical　models　for　these　different　floor　structures　are　established　and　verified　by　experiments.　The　temperature　distribution　and　heat　transfer　process　of　each　part　are　comprehensively　obtained,　and　the　structure　is　optimized.　The　results　show　that　the　cement-tile　floor　has　the　better　heat　transfer　performance　of　the　two.　When　under　the　same　inlet　water　temperature　and　flow　rate,　the　keel-wood　floor＇s　surface　temperature　distribution　is　about　2　degrees　C　lower　than　that　of　the　cement-tile　floor.　The　inlet　water　temperature　of　cement-tile　floor　is　about　10　degrees　C　lower　than　that　of　keel-wood　structure　when　the　floor　surface　temperature　is　the　same.　During　a　longitudinal　heat　transfer　above　MHPA,　the　floor　surface　temperature　decreases　by　0.5　degrees　C　for　every　10　mm　filling　layer　increase.　In　order　to　reduce　the　non-uniformity　of　the　floor＇s　surface　temperature　and　improve　the　thermal　comfort　of　the　heated　room,　the　optimal　structure　for　a　floor　is　given,　with　the　maximum　surface　temperature　difference　reduced　by　3.35　degrees　C.　We　used　research　focusing　on　new　radiant　floor　heating,　with　advantages　including　high　efficiency　heat　transfer,　low　water　supply　temperature,　simple　waterway　structure,　low　resistance　and　leakage　risk,　to　provide　theory　and　data　to　support　the　application　of　an　effective　radiant　floor　heating　based　on　MHPA.