A shielding assembly includes a frame and a cover mounted on the frame. The frame includes a plurality of first sidewalls, and at least one pair of resilient clips. Each resilient clip includes a protruding portion protruding from an exterior surface of a corresponding first sidewall, an extending portion extending from the protruding portion and along the exterior surface of the corresponding first sidewall, and a protrusion protruding from the extending portion and toward the exterior surface of the corresponding first sidewall. The cover includes a plane covering the frame, a plurality of second sidewalls extending perpendicularly from the plane and corresponding to the first sidewalls, at least one pair of stopper portions each protruding from one of second sidewalls and corresponding to one of the resilient clips. Each stopper portion is received between the protruding portion and the protrusion of the corresponding resilient clip.