The invention discloses an electronic luminescent device for simulating true fire and a method for simulating true fire by the same. The electronic luminescent device comprises an enclosure, a light-emitting element, flame sheets and a swing mechanism, wherein, the flame sheets are movably suspended on the enclosure and comprise upper sheets which are simulated into a flame shape, and the upper sheets are exposed outside the enclosure; the light-emitting element is installed on the enclosure, and the light outgoing direction of the light-emitting element is intersected with the upper sheets so that the light of the light-emitting element is projected on the surfaces of each upper sheet; and the swing mechanism is arranged under the flame sheets and used for applying an acting force on theflame sheets so that the flame sheets sway or swing. By matching the flame sheets with projecting light, the flame sheets sway under the action of the swing mechanism, and the light give off by the light-emitting element is projected on the flame sheets and looks like true flickering flame so that the flame simulated by the luminescent device is closer to the wick flame of the traditional lighting devices such as a true candle, a kerosene lamp and the like, thus further promoting the visual experience of the product and providing the product with more interest and appreciation.