Cu films were electrodeposited at a constant potential under a magnetic field of 5 T on the Pt disc electrodes with diameters of 3 mm ~ 25 μm. Such magnetoelectrodeposited Cu films were employed as an electrode, and cyclic voltammograms were measured for the electrochemical reactions of the enantiomers of alanine. Chiral behavior was observed in the oxidation currents between the enantiomers. The clear chiral behavior was observed on the micro-disk electrode. The galvanostatic and pulse electrodeposition of the Cu films was also conducted in the magnetic field, and the chiral behavior depended on the pulse width. These results are discussed in connection with the micro- MHD and vertical MHD convections.