The invention discloses a method for preparing low-
benzopyrene high-purity d-
alpha tocopherol acetate. The method comprises the following steps of: mixing d-
alpha tocopherol, an
inert organic solvent and a catalyst in a certain ratio, controlling the temperature, performing
esterification reaction on the mixture and
acetic anhydride, mixing obtained crude d-
alpha tocopherol acetate and a polar
solvent, loading to a column, adsorbing by using resin so as to remove impurities, mixing the obtained product and the
inert organic solvent, adding a removal agent in a certain ratio, circulating at the constant temperature of 60 DEG C for 2 hours in an external circulation mode, filtering, concentrating, desolventizing, and performing short-path molecular
distillation refinement under high vacuum conditions to obtain the low-
benzopyrene high-purity d-alpha
tocopherol acetate. The content of the obtained product is high, and the content of the d-alpha
tocopherol acetate is more than or equal to 98 percent; the
specific rotation is more than or equal to +24 degrees; the concentration of
heavy metals (based on Pb) is less than or equal to 10ppm; and the concentration of
benzopyrene is less than or equal to 2ppb. The quality of products meets the standards established by developed countries in Europe and America.