The invention discloses a wire bunching device, an electrical box adopting the wire bunching device, and an electric appliance. The wire bunching device comprises a wire bunching piece, the wire bunching piece is composed of a first part and a second part which are mutually connected to constitute a wire bunching hole, one ends of the first part and the second part are rotatably connected, and theother ends of the first part and the second part are detachably connected. According to the wire bunching device, the wire bunching piece can be opened and closed repeatedly, thus the repeated usingeffect can be achieved, after being mounted, the wire bunching device is also detached directly to adjust the position, when much wiring is conducted, wiring can be optimized by using a fixing plate in a matched mode, thus tidiness in the electrical box is kept, and the maintenance or mounting efficiency is improved.