Electrochemical oxidation has manifested great advantages of low carbon, energy saving and cleanliness on degradation of toxic organics in water. The key to this technology is the development of efficient, stable and inexpensive anodes. A Ti/SnO2-IrO2 electrode was prepared by facile thermal decomposition method. The morphology and elemental composition of the electrode were characterized and the electrochemical performance of the electrode was analyzed. Furthermore, the Ti/SnO2-IrO2 electrode was used to degrade p-chlorophenol, and the influence of various factors, including current density, initial concentration of p-chlorophenol, concentration of Cl-, on the degradation effect was adequately investigated. The results show that the Ti/SnO2-IrO2 electrode has a long lifetime and good electrochemical performance. Especially, when the electrode is used to degrade p-chlorophenol at the current density of 20 mA·cm-2, the initial p-chlorophenol concentration of 300 mg/L and the Cl- concentration of 1 000 mg/L, the removal rate of chemical oxygen demand (COD) can reach up to 89.02% with a low energy consumption of 0.596 kWh·g-1. The excellent electrocatalytic performance of the Ti/SnO2-IrO2 electrode indicates its promising prospect for industrial applications.