Electromagnetic shielding device of chip circuit module

The invention provides an electromagnetic shielding device of a chip circuit module. The electromagnetic shielding device comprises a substrate, a voltage stabilizing capacitor part, a connecting structure and a plurality of metal cover parts, the substrate comprises one or more alternately distributed first type substrate regions and second type substrate regions, the substrate region on the outer side surrounds the substrate region on the inner side, the first type substrate region comprises an annular first type substrate contact region, and the annular second type substrate region comprises an annular second type substrate contact region; the voltage stabilizing capacitor part comprises polycrystalline material layers which are located in partial regions of the annular first type substrate contact region and the annular second type substrate contact region and are distributed at intervals; each metal cover part comprises an annular layer and a top net-shaped layer, and the annular layers and the top net-s