Abstract: A portable lighthouse assembly for deterring intruders includes a lighthouse having a height less than 4.0 feet. A light emitter is rotatably positioned in the lighthouse to emit light outwardly therefrom. The light house is positionable in a yard to deter intruders when the light emitter is turned on. A motion sensor is coupled to the lighthouse to sense motion within a pre-determined perimeter of the lighthouse. The light emitter is turned on when the motion sensor senses motion. An alarm is coupled to the lighthouse to emit an audible alarm when the motion sensor senses motion. A camera is coupled to the lighthouse to capture images or video of an environment of the lighthouse. A microphone is coupled to the lighthouse to record audible sounds proximate the lighthouse.