The invention provides an oxidable volatile organic matter treatment device which comprises a condenser. A liquid collecting tank is arranged at the lower portion of the condenser. A liquid returning pump is arranged on the condenser. A liquid inlet pipe of the liquid returning pump is inserted in the liquid collecting tank. A liquid returning pipe of the liquid returning pump is communicated with the interior of a production device or a liquid storage barrel. The bottom of a spray tower is connected with a recycling pipe. The recycling pipe is communicated with an evaporating cavity which is provided with a vapor exhaust pipe. The vapor exhaust pipe is communicated with the condenser. By means of the oxidable volatile organic matter treatment device, workers can conduct condensing and recycling treatment on volatile organic matter in accumulated liquid evaporated in the spray tower through the evaporating cavity after waste gas treatment and can also put an installation frame in an activated carbon adsorber into a photocatalytic oxidizer to conduct activating treatment on activated carbon fiber. By means of the oxidable volatile organic matter treatment device, oxidable volatile organic matter treatment can be conducted step by step, the treatment effect is good, and the recycling rate is high.