The invention provides acrylic bathtub butting adhesive and application thereof. The acrylic bathtub butting adhesive comprises components A and components B. The components A comprise, by weight, 25-45 parts of polymethyl methacrylate, 45-60 parts of methyl methacrylate, 1-5 parts of epoxy acrylic acid, 0.5-3 parts of reducing agents, 5-11 parts of fillers and 2-3.5 parts of auxiliaries; the components B comprise, by weight, 75-85 parts of epoxy resin, 15-20 parts of initiators and 1-5 parts of fillers. The acrylic bathtub butting adhesive and the application have the advantages that acrylicmaterials can be seamlessly connected with one another by the acrylic bathtub butting adhesive, the acrylic bathtub butting adhesive is excellent in mechanical performance after being solidified, is good in weather resistance and water resistance and free of yellowing, is abrasion-resistant, high-temperature-resistant and ultraviolet-resistant, can be quickly hardened, can be sanded and is semi-transparent, 100% complete reaction can be carried out, and special surface treatment can be omitted.