As-deposited Co-Ni-Mo electrocatlyst on carbon support was investigated for the ethanol oxidation, and its activity was compared to that of Ni, Co, and bimetallic Co-Mo electrocatalysts. All electrocatalysts were prepared by electroless deposition method on carbon substrate support (CCS) made active for electroless deposition with Pd-ink. For ternary eletrocatalysts, the effects of electroless deposition time, reaction temperature (30-60°C) were studied. The result showed that CoNiMo/CCS was highly active in alkaline ethanol solution (0.5M NaOH+1 M EtOH) for ethanol oxidation. Furthermore, the reaction performances for all electrodes were investigated using cyclic voltammetry (CV). The result shows that Ni and Co electrodes showed not only oxidation peaks but also reduction peaks, which were typical behaviors for ethanol oxidation. For Co-Mo and Co-Ni-Mo electrodes provided the similar CV patterns. However, the current densities for tri-metallic electrode were higher than those from Co-Mo electrode. This suggests that the nickel has helped increase the reaction activity. Furthermore, the oxidation kinetics parameters, activation energy (E_a) and rate constant (k) were determined form CV, which were tested at different temperature and ethanol concentrations. Overall, this study provides a promising novel and effective non-noble Co-Ni-Mo electrocatalyst with an onset potential of -0.7 V (vs. Ag/AgCl).