Aming at the problems of large emissions and difficult degradation for pollutant of phenol series contained in wastewater of propellants and explosives, the electrocatalytic oxidation of simulated wastewater of propellants and explosives with phenol was studied using RuO₂-IrO₂-SnO₂/Ti as anode and Ti as cathode, sodium chloride as elecctrolyte.The effects of sodium chloride concentration, current density, pH value and initial concentration of phenol wastewater on phenol removal efficiency were investigated. The change in total organic carbon(TOC) and chemical oxygen demand (COD) with time were studied under the conditions of the best removal efficiency of phenol. The intermediate products and process of degradation of phenol were speculated by high performance liquid chromatography. Results show that under the conditions of sodium chloride concentration as 13 g·L^-1, current density as 30 mA·cm^-2, pH value as 5, initial concentration of phenol wastewater as 500 mg·L^-1, when the reaction time is 60 min, the phenol removal efficiency is up to 99.85%. Under the conditions of the best removal efficiency of phenol, when the reaction time is 100 min, the removal efficiency of TOC and COD are 53.55% and 59.37%, respectively.The electrode is easy to catalyze the electrophilic addition reaction of ClO^-, · OH and other active groups with benzene ring to form aromatic compounds, which can be oxidized to aliphatic compounds CO₂ and H₂O.