On the surface of the second resin layer of the resin-coated paper of the present invention can be formed, by coating, such an undercoating layer as is described in Japanese Patent Unexamined Publication Nos. 61-84643, 1-92740, 1-102551 and 1-166035, etc., after subjecting the second resin layer to an activating treatment such as corona discharge treatment, flame treatment, or the like.