This　paper　focuses　on　the　influence　of　temperatures　on　the　out-of-plane　compressive　performance　of　novel　truncated-square　honeycomb　reinforced　hollow　pyramidal　lattice　sandwich　structure　(TSH-HP)　by　combining　theoretical　prediction,　experiment　and　finite　element　analysis.　As　the　temperature　go　up　from　25　degrees　C　to　450　degrees　C,　compressive　modulus,　initial　failure　strength,　peak　strength　and　energy-absorption　performance　of　TSH-HPs　prepared　by　selective　laser　melting　(SLM)　techniques　decrease　by　46.2%,　46.9%　42.3%　and　46.3%,　respectively,　which　are　in　well　agreement　with　experiment　and　numerical　simulation.　In　addition,　the　initial　failure　strength　and　peak　strength　of　TSH-HPs　are　5-10%　higher　than　those　of　hollow　pyramid　lattice　structure　(HP)　with　same　mass　under　different　temperature.　Compared　with　competing　cellular　materials,　TSH-HPs　exhibit　superiority　in　the　specific　strength　on　the　material　selection　map.