The effects for the simultaneous degradation of meta-xylene (MX) and ethyl acetate (EA) by corona discharge plasma (CDP) combined with MnZrLaCe/γ-Al2O3 were investigated. The MnZrLaCe/γ-Al2O3 were characterized by SEM-EDS, XRD, BET, XPS, FT-IR and O2-TPD. The simultaneous degradation mechanism of the CDP combined catalyst for the mixed VOCs was discussed. Compared with degradation the single component, the degradation efficiency of MX and EA simultaneously is greatly higher than that of the CDP alone. The degradation efficiency of EA, MX and the mixture by the CDP combined with catalyst is up to 93.6 %, 94.5 % and 83.5 % at supply voltage 40 kV, and is 61.2 %, 43.3 % and 33.4 % higher than that of the NTP alone, respectively. The simultaneous degradation efficiency of MA and EA mixed pollutants is significantly improved after the addition of catalysts at the same supply voltage. The EY of all CDP combined with catalysis generally have a down ward trend with increasing of the supply voltage. The best EY for degrading MA and EA mixed pollutants simultaneously by the CDP combined with MnZrLaCe/γ-Al2O3 are up to 7.45 g/kWh at supply voltage 24 kV. The O3 concentration in the outlet gas of the CDP reactor is relatively low, and the NOx in the outlet gas is essentially absent. The main intermediate products of simultaneous degradation MX and EA by the CDP combined with MnZrLaCe/γ-Al2O3 are n-heptane, toluene and paraxylene, etc. Finally, the degradation mechanism for the MX and EA simultaneously by the CDP over the MnZrLaCe/γ-Al2O3 catalyst are proposed.