The invention discloses a formula of a rare earth stabilizer. The rare earth stabilizer is prepared from the following components in parts by weight: 105 to 134 parts of polyvinyl chloride resin powder, 8 to 13 parts of rare earth compound stabilizer, 11 to 17 parts of acrylate, 1.5 to 3 parts of magnesium sulfate, 0.5 to 1 part of copper sulfate, 8 to 15 parts of methacrylate, 3 to 6 parts of active hydrocarbon, 6 to 14 parts of titanium dioxide and 0.5 to 1 part of polyethylene wax. The formula of the rare earth stabilizer, disclosed by the invention, has the advantages that the proportioning design is extremely reasonable; the adhesion is excellent and falling is avoided when the formula is attached to the surface of PVC (Polyvinyl Chloride) in the processing flow of the PVC resin.