The invention discloses an adhesive for alkali resistant acrylate glass fiber mesh cloth shaping, and a preparation method thereof, and belongs to the field of polymer adhesive preparation. The adhesive is prepared through the reaction of the following components, wherein the components comprise: a material selected from acrylic acid and an ester monomer thereof, or methacrylic acid and an ester monomer thereof; nano-silicon dioxide; a styrene monomer; an initiator; an emulsifier; a buffering agent; a molecular weight regulator; a pH value modulator; and deionized water. According to the adhesive, the nano-silicon dioxide is adopted as the core, a copolymer of the styrene monomer and the acrylic acid monomer is adopted as the shell layer, and the shell layer hard monomer is the acrylate copolymer emulsion with the significant core-shell structure, wherein the concentration of the shell layer hard monomer shows the gradient change. The glass fiber mesh cloth treated by the adhesive of the present invention has advantages of excellent positioning effect, strong adhesive force, bright mesh cloth, good elasticity, high alkali resistance, good water resistance, strong weathering resistance, no yellowing, and no after tack. The adhesive of the present invention is the single mass component glue, is easy to use, does not contain any organic solvents, and has advantages of aquosity and environmental protection.