Abstract: A frame lamp includes a bottom casing, a top casing, an illuminating component and a plug. The bottom casing has a plate form and has a cavity disposed therein. The top casing detachably engages with the bottom casing. The top casing includes a frame-shaped light transmitting component and a transparent decoration plate. The frame-shaped light transmitting component forms a window in its middle. The transparent decoration plate fits the window. The illuminating component is disposed within the cavity. The window allows light emission from the illuminating component within an emission area defined by the window. The plug extends across the bottom casing. Also, the plug is electrically coupled to the illuminating component. In addition, the plug relays power to the illuminating component while being electrically coupled to an external power source.