The invention belongs to the technical field of explosion-proof films, and specifically relates to an integral explosion-proof film for a black screen and a preparation method thereof. The integral explosion-proof film sequentially comprises a functional coating, a base material layer, a black adhesive layer, and a release film layer. By adopting the black adhesive layer, a black explosion-proof film is obtained; the glass does not need any fumigation process, which may influence the yield of glass products and light transmittance of glass, thus the glass processing cost and energy consumptionof electronic devices can be reduced; black color paste is added into an adhesive layer coating liquid to obtain the black adhesive layer, the operation is convenient, the whole process is barely influenced; the cost is low, the operation is easy; a silane coupling agent is added into the black adhesive layer coating liquid, the adhesion force between the adhesive layer and the base material layer / glass is improved; at the same time, the pigments are more evenly dispersed, and the light transmittance is maximally maintained after the addition of pigments.