Shielding wire for shielding window, wire screen and wire-screen-sandwiched shielding window

The invention relates to a shielding wire for a shielding window, a wire screen and a wire-screen-sandwiched shielding window. The shielding wire comprises a central wire body, wherein the outer surface of the central wire body is sequentially plated with a first nickel layer, a silver layer and a second nickel layer; the central wire body is a stainless steel wire or copper wire; the diameter of the central wire body is 20-50 mu m; and the thicknesses of the first nickel layer, the silver layer and the second nickel layer are respectively 5-15 mu m. The invention also claims a wire screen for a shielding window, which is made of the shielding wire. The invention also claims a wire-screen-sandwiched shielding window made of the wire screen. The wire-screen-sandwiched shielding window has the good high-frequency band shielding effect, and greatly improves the low-frequency band shielding effect. Meanwhile, the shielding window also keeps better transmittance, can be used as an electromagnetic shielding window