A screen for a cathode ray tube and a method for manufacturing the screen are provided. The screen for a cathode ray tube includes: a phosphor film formed on the inner front surface of a panel where at least one stud pin is mounted, the phosphor film including phosphor layers; a metal layer formed on the phosphor film, which reflects light emitted from the phosphor layers toward the front side of the panel; and a gas exhaust member extended from the metal layer, which provides a path for gas to exhaust, the gas being generated as a filming layer interposed between the phosphor film and the metal layer to make the thickness of the phosphor film uniform is decomposed. To manufacture this screen, a guide block having a mask pattern, which corresponds to a pattern of a metal layer and gas exhaust member to be formed as a single body inside the panel on which the phosphor film and a filming layer have been formed, is fitted into the panel. After evacuating a processing space where the panel is loaded, a precursor of the metal layer is heated to evaporate, thereby simultaneously forming the metal layer on the filming layer to cover the phosphor film and forming the gas exhaust member to selectively extend from the boundary of the metal layer as a pattern.