There is problem for health and the environment by chronic exposure of volatile organic compounds (VOCs). Non-thermal plasma technology offers a reformative approach to the problem of removing various VOCs. In this study, VOC decomposition using honeycomb type discharge reactor has been experimentally investigated. Discharge plasma was occurred at end face of zeolite honeycomb. Humidity of the feed gas was considered discharge parameter on zeolite honeycomb. Discharge emission was observed, adsorption and desorption of VOC on zeolite honeycomb were investigated. A toluene, which is one of the most commonly used VOCs, was used and the decomposition characteristics by discharge plasma were investigated.