The utility model provides an ethylene oxide recovery device. The recovery device comprises a water sprayer, a collecting funnel and a collecting tank or a gathering tank, wherein the water sprayer is arranged outside a safety valve outlet on the top of a rectifying tower; the collecting funnel is arranged below the sprayer; the collecting tank or the gathering tank is connected with the funnel by a pipeline; the ethylene oxide recovery device is characterized in that the spraying direction of the safety valve gas of the recovery device is vertical to the water spraying device of the water sprayer. The recovery device provided by the utility model can be used for safely recycling the discharged gases of the safety valve of the ethylene oxide rectifying tower to solve a problem that the ethylene oxide is directly exhausted to the atmosphere by the safety valve of the ethylene oxide rectifying tower, so that the workers and the rescue workers on the spot are protected; the life safety and health of the public are maintained; and the used water and land are saved.