The utility model discloses an aluminium core composite wood of environmental protection, including outer wood layer and interior aluminium lamination, outer wood layer cover is in interior aluminium lamination is outside, be equipped with the one deck water proof membrane on the outer wood layer, still be equipped with the one deck insulating layer between outer wood layer and the interior aluminium lamination. The utility model discloses compounded aluminium core's timber, its simple structure, also reduced ligneous use simultaneously, it is also simple that technology is just manufactured to the environmental protection, also is difficult for decaing in the use, the dampproofing effect of certain fire prevention still has.