Electrocatalytic oxidation behaviors and electrochemical kinetics of methocarbamol （MET） were investigated at ［BnMIM］PF6 modified carbon paste electrode （［BnMIM］PF6/CPE）.The experimental results indicated that MET electrochemical behavior exhibits an irreversible electrochemical oxidation process at ［BnMIM］PF6/CPE.The electrochemical kinetic parameters were determined by cyclic voltammetry（CV） and chronoamperometry（CA） at ［BnMIM］PF6/CPE.The catalytic oxidation peak current of MET versus its concentration had a good linear relationship in the concentration range of 3.0×10-5-1.0×10-2 mol?L-1 with a detection limit（S/N=3）of 3.3 ×10-6 mol?L-1 by square wave voltammetry（SWV）.The proposed method was successfully applied in the determination of MET contents in commercial tablet samples，with their relative standard deviations of 1.5% -2.5% and recoveries of 98% -99%.