To provide a method and apparatus for manufacturing novel corrugated cardboard capable of effectively preventing the curving (warpage) of the produced corrugated cardboard.

The method for manufacturing the corrugated cardboard, which is equipped with a corrugating medium 3 having ridge parts 3a and trough parts 3b formed thereto, one liner 1 bonded to the corrugating medium 3 and the other liner 5 bonded to the corrugating medium 3, has a corrugating medium molding process for bonding a paper sheet becoming the corrugating medium 3 so as to alternately form the ridge parts 3a and the trough parts 3b, a liner bonding process for bonding one liner 1 to the surface of the corrugating medium 3 having the ridge parts 3a and the trough parts 3b alternately formed thereto and a liner bonding process for bonding the other liner 5 to the rear surface of the corrugating medium 3 having the ridge parts 3a and the trough parts 3b alternately formed thereto. The ridge parts 3a and the trough parts 3b formed to the corrugating medium 3 have length in the length direction of the paper sheet and both liner bonding processes are performed almost at the same time.