The present invention discloses a method of manufacturing a shadow mask, wherein hybrid processing is used to form a mask pattern on the shadow mask, the method includes: forming a wet-etched pattern by performing wet etching from above a base; and forming a laser-processed pattern that continues from the wet-etched pattern, by performing laser processing from above the base or from below the base on which the wet-etched pattern is formed. The present invention uses hybrid processing including wet etching and laser processing for manufacturing a shadow mask. The method has an effect on solving the productivity degradation of the conventional laser processing and provides a shadow mask with high quality using wet etching.