The invention discloses a preparation method of a shielding silk screen and the prepared shielding silk screen and shielding glass, and belongs to the technical field of special glass manufacturing. The preparation method of the shielding silk screen adopts two types of metal plating liquid with proper formulas and pH values in succession to coat a metal silk screen to obtain a nickel copper double-coating shielding silk screen with excellent shielding efficiency; the shielding silk screen is higher in absorption and reflection function on electromagnetic waves; the shielding efficiency of theshielding glass prepared by the shielding silk screen with 100 meshes is not lower than 50 dB in a frequency range of 30 MHz to 1 GHz; and the broad application prospect is achieved.