Regenerative thermal oxidizer(RTO)is a piece of high-efficiency organic waste gas treatment equipment with the advantages of high purifica-tion efficiency,low operating cost and high thermal efficiency,but also presents safety risks.The process principle of the RTO is presented,and by loo-king at the RTO explosion incidents that have occurred in recent years,the causes of such safety incidents is examined,and safety measures such as in-stalling waste gas sampling analyzer,flame arrester,bursting disc,oxygen makeup fan,emergency bypass are proposed,to ensure the safe operation of RTO.