A shielding device comprises a shielding housing, a first conductor, a second conductor and a support frame. The shielding shell comprises an upper cover and a lower cover; the upper cover comprises a top plate, two opposite side walls and rear walls; the side walls and the rear walls of the upper cover respectively comprise a body and a folded edge and are respectively connected with the top plate; the folded edges are respectively folded from the tail end of the body of each own towards the lower cover. The lower cover comprises a bottom plate, two side walls and rear walls; the side walls and the rear walls of the lower cover respectively extend out from the bottom plate towards the direction of the upper cover. After the upper cover and the lower cover are assembled, the side walls and the rear walls of the upper cover are overlapped with the side walls and the rear walls of the lower cover; besides, a holding space is formed between the folded edges and the side walls and the rear walls of the lower cover; the second conductor is arranged in the holding space; the first conductor is arranged outside the front end of the shielding housing through self-elasticity; the supporting frame is arranged on the outside of the front end of the shielding housing to support the first conductor. The utility also provides the electric products which use the shielding device.