The Auto hot plate plastic pallet welding machine send the plastic parts to weld waiting area by auto feeding device; during the welding procedure, two heating plates will goes inside the separated pallet pieces to heat and melt it, after set heating time, the two pieces plastic will goes up/down to leave space for the heating place move back, then the two pieces plastic will be moved to be connected for sometime to weld and cool. After all of these procedure finished the finished plastic pallet will be transferred automatically.