Regenerative Incineration Device is an environmentally friendly device used to treat medium and high concentration organic waste gas. RTO regenerative thermal oxidizer oxidizes organic matter (VOCs) in waste gas into corresponding carbon dioxide and water at high temperature, thereby purifying waste gas and recovering the heat released when the waste gas is decomposed. The three-chamber RTO waste gas decomposition efficiency reaches more than 99%, and the heat recovery efficiency reaches more than 95%, which can reduce operating costs.