Non-thermal　plasma　coupled　with　catalysis　was　employed　to　remove　the　toluene　that　was　a　representative　pollutant　of　volatile　organic　compounds　(VOCs).　The　effect　of　plasma　reactors　with　or　without　fillings　on　toluene　removal　was　investigated.　Three　kinds　of　catalysts　were　as　follows:　the　catalyst　of　separate　load　TiO2,　BaTiO3,　or　the　mixed　catalyst　TiO2+BaTiO3.　The　effect　of　plasma　reactors　by　adding　the　mixed　catalyst　of　different　BaTiO3　and　TiO2　mass　ratios　were　investigated,　while　the　optimal　ratio　of　the　two　materials　was　explored;　the　energy　consumption　of　the　plasma　reactors　by　adding　various　catalysts　were　also　studied;　and　the　reaction　product　was　analyzed.　Results　showed　that　the　toluene　degradation　ability　of　different　catalyst　reactors　was　as　follows:　The　mixed　catalyst　of　TiO2+BaTiO3-separate　load　of　BaTiO3-separate　load　of　TiO2;　the　plasma　reactor　by　adding　mixed　catalyst　of　BaTiO3　and　TiO2　mass　ratio　of　2.375:1　had　the　best　degradation　effect　of　toluene,　and　the　minimum　energy　consumption　compared　to　other　catalysts.　The　highest　toluene　degradation　rate　was　75.2%　and　the　power　was　138.8　W　at　20　kV.