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1. A laminated shielding inductor, comprising a laminated body, an internal coil, a first external electrode, a second external electrode, a third external electrode, and a shielding cover, wherein the laminated body comprises a plurality of insulator layers arranged in a laminating manner and is provided with a plurality of layers of coil conductors arranged among the plurality of insulator layers in a laminating manner, conductive through holes are formed in the plurality of insulator layers, the coil conductors of different layers are electrically connected through the conductive through holes to form the internal coil, shielding conductor through grooves which are located at the periphery of the internal coil are formed in the plurality of insulator layers, shielding conductors are arranged in the shielding conductor through grooves, the shielding conductors in the shielding conductor through grooves are electrically connected and jointly form a shielding conductor laminated layer surrounding an outer side of the internal coil, a shielding conductor upper layer and a shielding conductor lower layer are respectively arranged above and below the internal coil, the shielding conductor laminated layer, the shielding conductor upper layer and the shielding conductor lower layer are closed to form the shielding cover enclosing the internal coil, the first external electrode, the second external electrode, and the third external electrode are arranged on a surface of the laminated body, the first external electrode and the second external electrode are electrically connected to the two ends of the internal coil respectively, and the third external electrode is electrically connected to the shielding cover.
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