A wall-mount aroma-diffusing night lamp assembly includes an electrical plug angularly adjustably connected to a housing, a heating element electrically connected to the electrical plug, a heat transfer member kept in contact with the heating element, a light-emitting device, a retaining device fastened to the housing, and a light guide plate detachably connected to the retaining device around a part of the periphery of the housing a uniform glowing effect during operation of the light-emitting device, and a disposable aroma capsule placed on the heat transfer member and heatable to release a pleasant smell.
