Abstract: Disclosed is a multi-function hand switch assembly for a portable x-ray device attached to and detached from a portable x-ray device having handle binders formed on both side surfaces and detachably fixes a hand switch extending as a cable from one side surface of the portable x-ray device, including a handle portion detachably bound to the handle binders to be able to rotate a predetermined angle about the handle binders and extending to surround both side surfaces and an upper portion of the portable x-ray device; a bracket portion detachably bound to a center of an upper surface of the handle portion, fixed to be able to rotate in place at the center of the upper surface of the handle portion, and extending a predetermined height upward; and a holder portion integrally formed with an upper end of a bracket and allowing the hand switch to be inserted or withdrawn.