Tin oxide is a promising anode for the oxidation of refractory organic compounds, with advantages of low cost and absence of secondary pollutants. In this study, a Cu/SnO₂-Sb₂O₅ anode was fabricated by cathodic deposition in a rotating system. The effect of electrode rotation speed on the structural properties of the synthesised anode (Cu/SnO₂-Sb₂O₅) was investigated in the range of 50–250 rpm. The structure and morphology of the prepared anode were examined via SEM and XRD. Results showed that the Cu/SnO₂-Sb₂O₅ anode prepared at 250 rpm possessed a compact, multi-layer coating structure without cracks. The electrochemical performance of the Cu/SnO₂-Sb₂O₅ anode was studied by examining its activity in degrading methylene blue (MB) at a concentration of 100 mg/L by anodic oxidation at 20 mA/cm² for 4 h. The anode prepared at 250 rpm was able to degrade MB with an efficiency of 93.6%, which was higher than that obtained by the anode prepared at 50 rpm (85.18%). The pseudo-first-order rate constant at 250 rpm was 0.01258 min^-1, which was 1.6 higher than that observed for the anode prepared at 50 rpm, confirming the importance of rotation in improving mass transfer and facilitating the deposition of tin oxide with high catalytic activity. The Cu/SnO₂-Sb₂O₅ anode fabricated at 250 rpm exhibited an enhanced service life of 18 h (200 mA/cm²; 0.5 M NaOH), whereas that prepared at 50 rpm had a reduced service life of 12 h. Compared with the Cu/SnO₂-Sb₂O₅ anode prepared by thermal decomposition, the present anode exhibited a service life of 1.5 times greater than that of the thermal method, confirming the efficacy of the electrodeposition approach in fabricating the Cu/SnO₂-Sb₂O₅ anode.