PURPOSE: To make even a resin material with a low melting point to have a sufficient adhesion, by a structure wherein an oxide is made to adhere to a resin of a base material, and subsequently a shielding metal is deposited thereto.

CONSTITUTION: An oxide layer 3 is formed on a resin 4 of a base material and a shielding metal is then deposited on the oxide layer 3. That, is in order to combine a shielding and an anti-corrosion, a nickel 1 is deposited on a copper 2 to form the shielding metal. When the shielding metal consisting of the nickel 1 and the copper 2 is to be deposited to the resin 4 of a base material by means of vacuum evaporation, the oxide layer 3 is previously formed on the resin 4, and thereafter the shielding metal is deposited. Thereby, in the interface between the resin and the oxide, carbon components of the resin and oxygen components of the oxide are chemically bonded each other to increase a bonding strength therebetween, while in the interface between the oxide and the metal, the oxygen components of the oxide is chemically bonded to the shielding metal to increase a bonding strength therebetween. Since there is a large bonding strength in each the interface, in the vacuum evaporation process, a good adhesion is obtained without the base being specially heated. As a result, a base material for electromagnetic wave shielding can be produced even though the resin of the base material has a low melting point.