PROBLEM TO BE SOLVED: To provide a production method of a Thujopsis extract capable of containing the compound represented by the formula at a high concentration in a simple method.SOLUTION: A production method of a Thujopsis extract with the content of the compound represented by the formula in an evaporation residue being 2% or more is characterized by adding Thujopsis to one or more solvents selected from the group consisting of ethyl acetate, butyl acetate, acetone, toluene and xylene followed by mixing, and collecting the resulting extracted liquid.