An object of the present invention is to provide a process for producing optically active 3-quinuclidinol having high optical purity or the salt thereof at high yield.The invention relates to a process for producing optically active 3-quinuclidinol or the salt thereof by reacting 3-quinuclidinone or the salt thereof with hydrogen in the presence of a basic compound, a complex of a transition metal in Groups 8 to 10, an optically active bidentate ligand and an optically active diamine.