In the present invention, provided is a device for manufacturing coated electrodes for secondary batteries, comprising a fixing roll installed on an upper part, which is fixed by a structure; a rotation roll installed at intervals with the fixing roll in the lower part of the fixing roll to be rotated in one direction; a slurry injected into a gap between the fixing roll and the rotation roll to be coated with foil for a current collector; an installed dam to coat the slurry in a predetermined coating width of the coated electrode; and a slurry laminate preventing part for preventing laminate of slurry in a certain length from the end part of the dam in the dam, so that minimum slurry can be injected into the gap between the fixing roll and the rotation roll.
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