Block land construction method adopting key nodes

The invention relates to a block land construction method adopting key nodes, which comprises the following steps: acquiring the key nodes of a block, classifying the key nodes, and prefabricating the key nodes as well as deck pieces, block main legs, upright posts and inclined struts which form a deck layer; the module main leg located at the bottommost part is pre-arranged on a sliding shoe on a construction site, a deck piece with a key node is assembled on the module main leg to form a bottom deck layer, and the module main leg, a stand column and an inclined strut are installed on the bottom deck layer; the deck pieces with the key nodes are assembled on the bottom deck layer to form a middle deck layer, and the deck pieces with the key nodes are assembled on the middle deck layer to form an upper deck layer; land construction of the blocks is completed; according to the method, the blocks are split into key nodes, deck pieces, block main legs, stand columns and inclined struts, the split key nodes can f