Water-encountering indicating label and preparation method thereof

The invention relates to the technical field of labels, in particular to a water-encountering indicating label and a preparation method thereof. The water-encountering indicating label comprises a transparent thin film, a transparent pressure-sensitive adhesive layer, a water-soluble identification layer, a water-absorption base material, a pressure-sensitive adhesive layer and release layer whichare sequentially stacked, wherein water-soluble characters are printed on the water-soluble identification layer. The preparation method includes: forming water-absorption single-sided tape, preparing water-soluble acrylic resin, adding a water-soluble fluorescent material into the water-soluble acrylic resin, coating the water-absorption material side of the water-absorption single-sided tape with the water-soluble acrylic resin to form the water-soluble identification layer, printing the water-soluble characters on the water-soluble identification layer, coating the transparent thin film with a transparent pressure