A shielding assembly includes a hollow frame and a cover mounted to the hollow frame. The hollow frame comprises a plurality of sidewalls, where one of the sidewalls defines a first groove and another one of the sidewall opposite to the one of sidewalls includes a first fixing portion. The cover includes a first end, a second end opposite to the first end, a first latch located on the first end and engaged with the first groove, and a second fixing portion located on the second end and engaged with the first fixing portion, so as to retain the cover on the frame. The first latch includes a resilient bent portion extending from the first end of the cover, and a hook protruding from the resilient bent portion and received in the groove.