Abstract: We prepared molecularly imprinted polymers of ?-cyclodextrin using three bioactive oligopeptides as templates; (a) angiotensin I (10-mer), (b) ?-endorphin (17-mer), and (c) leucine-enkephalin (Leu-Enk: 6-mer). With both angiotensin I and Leu-Enk as the templates, highly precise imprinting effects were observed. The present finding strongly indicates that we can prepare artificial antibodies by imprinting of CyD to a conformationally restrained part of a protein Template and target information:oligopeptides, endorphin, leucine-enkephalin, angiotensin I Author keywords:cyclodextrin, imprinted polymer, molecular recognition, oligopeptide