A method and an apparatus for fabricating a display panel, where the method for fabricating the display panel includes providing a first substrate and a second substrate, arranging alignment layers at the first substrate and the second substrate, respectively, arranging liquid crystals and monomers between the first substrate and the second substrate to form a liquid crystal cell, and placing the liquid crystal cell in a reaction chamber, applying a drive voltage to the liquid crystal cell and illuminating the liquid crystal cell with a light source to perform polymerization between the monomers and the alignment layers. The light source includes at least one wavelength, and illumination times of the light source are at least one. The light source is an ultraviolet light or a visible light. By controlling the reaction condition between the alignment layers and the monomers, defects caused in the alignment process may be reduced.