Abstract: A motion detecting traffic cone assembly includes a cone that may be positioned on a support surface such that the cone is visible to an observer. A processor is coupled to the cone. A motion detector is coupled to the cone so the motion detector may detect the observer. The motion detector is operationally coupled to the processor so the motion detector may selectivel actuate the processor. A light emitter is coupled to the cone. The light emitter is operationally coupled to the processor so the processor may selectively actuate the light emitter. An alarm is coupled to the cone. The alarm is operationally coupled to the processor so the processor may selectively actuate the alarm. A speaker is coupled to the cone. The speaker is operationally coupled to the alarm so the alarm may selectively actuate the speaker. A control panel is coupled to the cone. The control panel is operationally coupled to the processor.