Socket set and reverse direction socket thereof

The utility model discloses a socket set and a reverse direction socket thereof. The reverse direction socket comprises a casing, an inner chamber and a leading pin, wherein one side of the inner chamber has an opening used for plugging of a plug, the inner chamber has an anti-plugging-error structure face and a correspondingly-arranged plane, and the anti-plugging-error structure face is located in the inner chamber far from one side of a stretching-out end of the leading pin. The arrangement mode above is equal to 180 DEG C rotation of an inner chamber of a plug in the prior art. When positions of the anti-plugging-error structure face and the plane are exchanged, and the anti-plugging-error structure face is arranged in the inner chamber far from one side of the stretching-out end of the leading pin, 180 DEG C rotation occurs when the plug is inserted, so a wiring screw portion of the plug is made to be at one side of the stretching-out end of the leading pin of the reverse direction socket, and thereby wi