A memory module and a method of manufacturing the same are disclosed. The memory module includes a substrate, at least one memory, a mask film and at least one light emitting diode. The substrate includes electrical circuit and golden fingers, and a notch is provided at the upper rim of the substrate. The mask film is formed of opaque copper foil, and has a notch and at least one hole close to the upper rim of the substrate. The light emitting diodes are configured on the substrate and connected to the electrical connection circuit, and each light emitting diode is provided at the corresponding hole of the mask film. Thus, light generated by the light emitting diodes passes through the hole and travels outwards along the upper rim of the substrate to form a specific bright pattern, text or strip, thereby enhancing a sense of vision.