PURPOSE: To perform a mass production easily and effectively by performing successively a welding stage and forming stage.

CONSTITUTION: The overlapping place 11 is fixed by overlapping the other wire rod 3, 4 in the prescribed length so as to cross with two wire rods 1, 2 located in parallel each other. The fixing with the wire rods 3, 4 crossing similarly continuously at the necessary position is repeated with moving in order the wire rods 1, 2 and the continuous body 17 to be formed composed by fixing at the prescribed intervals many other wire rods 3, 4 crossing with two wire rods 1, 2 located in parallel each other is formed. This body 17 to be formed is fed to a press device 16 by a feeding cam 23, cut by a cutter 14 after being pressed by a press die 13 and the spacer 18 for light weight cellular concrete board reinforcing frame body is produced.