A method for preparing a crystal structure analysis sample for determining an absolute configuration of a chiral compound, the method comprising bringing a single crystal of a porous compound into contact with a solvent solution that comprises a chiral compound for which the absolute configuration is to be determined, to prepare a crystal structure analysis sample, the single crystal of the porous compound comprising a three-dimensional framework, and either or both of pores and voids that are defined by the three-dimensional framework, and are three-dimensionally arranged in an ordered manner, the three-dimensional framework being formed by one molecular chain or two or more molecular chains, and a framework-forming compound, and comprising a chiral substituent of which the absolute configuration is known, the crystal structure analysis sample having a structure in which molecules of the chiral compound are arranged in either or both of the pores and the voids of the single crystal in an ordered manner.