Transparent electromagnetic shielding film and preparation method thereof

The invention belongs to the technical field of electromagnetic shielding materials, and provides a transparent electromagnetic shielding film and a preparation method thereof. The shielding film comprises a first shielding layer, a first anti-reflection layer, a substrate layer, a second anti-reflection layer and a second shielding layer which are sequentially arranged from bottom to top; the first shielding layer and the second shielding layer are metal layers provided with the same gridding patterns, and the positions of the gridding patterns of the two shielding layers relative to the substrate layer are completely the same. The preparation method comprises the following steps: depositing the first anti-reflection layer and the second anti-reflection layer on two sides of the substrate layer; a first metal layer and a second metal layer are deposited on the sides, away from the substrate layer, of the two anti-reflection layers respectively; and respectively coating photoresist on the sides, deviating fro