The present disclosure relates to an electrode manufacturing device and a method of manufacturing an electrode using the same, and the technical objects to be solved are directed to providing an electrode manufacturing device and a method of manufacturing an electrode using the same, in which a defect rate in a winding process is minimized by accurately measuring an extent of elongation before/after rolling of an electrode and a length of a slurry elongated after the rolling. To this end, the present disclosure provides a transfer part (100) which moves an electrode (20) coated with an active material, a rolling part (200) which rolls the electrode, a marking part (300) which is provided in front of the rolling part and forms a plurality of mark portions on the electrode, a measurement part (400) which measures distances between the mark portions before the rolling and after the rolling of the electrode, and a control part (500) which calculates an extent of elongation by comparing measurement results of the measurement part.