The taste of amino acids (AAs) has been investigated by many researchers (e.g. Yoshida and Saito, 1969; Schiffman et al., 1982) and AAs are known to have complex taste. For the comparison of both taste quality and taste intensity of various AAs, we performed human psychophysical experiment regarding the taste of AAs using a category-ratio scale, the labeled magnitude scale (LMS; Green et al., 1993). In this report, we demonstrate the taste of d-AAs in comparison to the taste of l-enantiomers that we previously reported (Hayakawa and Kawai, 2004).