Electrode marking apparatus and roll map generation system

The invention relates to a marking device for an electrode moving between an unwinder and a rewinder. The marking apparatus includes: a position measurer for obtaining a position of an electrode as a coordinate value in a longitudinal direction of the electrode according to a rotation amount of an unwinder or a rewinder; at least one defect inspector which inspects the electrode to specify a defect portion and is connected with the position measurer to obtain a coordinate value of the defect portion in the longitudinal direction of the electrode; a marking device provided behind the defect inspector in the electrode movement direction; and a control unit that compares a real-time relative position value of the marking device with respect to the moving electrode with a coordinate value of the defect portion to determine whether to perform marking, in which the marking device marks the defect portion on the electrode according to a defect marking signal from the control unit. The invention further provides a ro