Storage device for bathroom mirror cabinet door

The utility model provides a storage device for a bathroom mirror cabinet door, which comprises a reinforcing back plate, an L-shaped side baffle plate, an adjustable extension seat, a towel hanging rod, a first storage box, a swingable side plate, a power supply plugboard and an external thread extension head, the reinforcing back plate is clamped on the rear side in a rectangular cabinet door frame, the L-shaped side baffle plate is arranged on the upper side of the rear end surface of the reinforcing back plate, and the towel hanging rod is arranged on the L-shaped side baffle plate. An adjustable extension seat is installed on the upper side of the left end face of the L-shaped side baffle, a towel hanging rod is clamped on the front side of the left end face of the adjustable extension seat, an external thread extension head is connected to the upper side of the right end face of the adjustable extension seat, a first storage box is hung in the middle of the rear end face of the reinforcing back plate, a