Door hinge and laundry treatment device provided with door hinge

A door hinge, and a laundry treatment device provided with the door hinge, includes a hinge mount, a hinge shaft and a rotating arm, a side of the rotating arm is provided with a wire passing groove, the rotating arm further includes a fixing clip, and a cavity structure is formed by the fixing clip and the wire passing groove for allowing wire to pass. On the basis of the prior art, a wire passing structure of the door hinge is added, wiring of an energization component of the laundry treatment device with the door hinge can be facilitated, wires can be hidden by the wire passing structure, space is saved, and the attractiveness is improved; the wires are not liable to be worn or broken since the wires are placed in the groove; and all parts of the rotating arm can be disassembled for easy maintenance.