To provide a method for efficiently producing a 1,3-diadamantane ester from raw materials except 1,3-diadamantanediol compounds, and to provide a method for efficiently producing a 1,3-diadamantanediol compound by a reaction under the atmospheric pressure.

This method for producing the 1,3-diadamantane ester comprises mixing and reacting a 1,3-dihalogenated adamantane compound with a carboxylic acid compound and the metal salt of the carboxylic acid compound or a transition metal oxide, and then mixing the obtained reaction solution with a base, an alkyl metal salt, an alkaline earth metal salt or an ammonium salt. The method for producing the 1,3-diadamantanediol compound comprises reacting the ester bond of the 1,3-diadamantane ester obtained by the method with water or the like in the presence of an acid or a base to hydrolyze and simultaneously introduce a hydroxyl group.