Spontaneous　polarization　plasma　reactor　was　used　to　remove　toluene,　which　was　a　representative　volatile　organic　compounds.　Under　the　condition　of　commercial-frequency　and　high-frequency　discharge,　the　traits　of　the　VOCs　abatement　among　the　BaTiO3　reactor,　the　NaNO2　reactor　and　an　empty　reactor　were　investigated.　The　running　power　and　pressure　drop　of　the　three　kinds　of　reactor　were　also　compared.　Decomposition　products　and　reaction　mechanism　of　toluene　were　analyzed　at　the　same　time.　The　experimental　results　show　that　under　the　same　conditions,　the　reactor　with　filling　has　higher　removal　efficiency　than　the　reactor　without　filling.　Furthermore,　the　reactor　with　barium　titanate　filling　had　higher　removal　efficiency　than　the　reactor　with　sodium　nitrite　filling.　The　running　power　and　pressure　drop　of　the　reactor　with　filling　are　higher　than　that　of　the　empty　reactor.　Except　a　small　amount　of　toluene　no　other　side-products　are　detected　in　the　effluent.