Abstract: A dismountable power outlet, structurally characterized in that upon inserting a connecting plug into a receptacle an insertion pin is passed through a slot opening and thereon into the receptacle, thereafter the insertion pin slots into an insertion slot of the connecting plug, at the same time metal pins of the receptacle lodge into joint holes of the connecting plug, and therewith enables flow of an electrical current. Furthermore, upon joining together the connecting plug and the receptacle, reverse connecting is prevented through an anti-reverse connection device devised from a protrusion configured on the receptacle and a hollow defined in the connecting plug.