The invention discloses an anti-aging mineral fiber filled foaming stone corrugated paper core and a preparation method thereof. The anti-aging mineral fiber filled foaming stone corrugated paper core is characterized by being prepared from, by weight, 15-20 parts of calcium carbonate, 1-2 parts of nano titanium dioxide, 15-20 parts of diatomite, 1-2 parts of antioxidant DNP, 15-20 parts of wollastonite, 30-40 parts of polyethylene, 0.5-1 part of azobisformamide, 1-2 parts of glutinous rice powder, 50-60 parts of rosin alcohol solution, 30-40 parts of polytetrafluoroethylene emulsion, 3-5 parts of Mg(OH)2, 5-10 parts of polyacrylate emulsion, 30-40 parts of dilute sulphuric acid, 1-2 parts of sodium dodecyl sulfate and 5-10 parts of ethanol. The prepared stone corrugated paper core has the advantages of being provided with uniform and fine pores and being light in mass, improves the waterproof, flame-retardant, moisture-proof and antimicrobial properties of the paper core, can be better applied to the field of packaging. The matched antioxidant is added to a coating, and the anti-aging properties of corrugated paper are improved.