The invention discloses a regenerated white non-magnetic reinforced plastic formula by taking white polycarbonate recycled plastic as basis and a preparation method of the regenerated white non-magnetic reinforced plastic formula. The regenerated white non-magnetic reinforced plastic formula is composed of the following components in percentage by weight: crushed particles of white polycarbonate recycled plastics, a flexibilizer MBS, titanium dioxide R103, a dispersing agent EB-FF, a brightening agent, a light stabilizer 791, an ultraviolet light absorber UV531, an antioxidant 1010 and an antioxidant 168, totaling 100%. The regenerated white non-magnetic reinforced plastic formula disclosed by the invention has the advantages that after the recovered white polycarbonate recycled plastics are treated by the preparation method, foreign colors, impurities and magnetic substances in the materials are removed. Yellowing and blackening materials are adjusted to be white and blue, and the strict product color requirement is met. The defect that the impact strength of the material subjected to thermal decomposition by heating is reduced is overcome, and the product strength requirement is met.