Abstract Many kinds of hydrocarbons are known to be decomposed by catalytic reaction at comparatively low temperatures. The technology of catalytic destruction is applied in many fields, for example, for automobile engine exhaust gas, deodorization from stack gas. We are trying to apply the catalytic destruction technology to reduce PCDDs concentration levels in the flue gas from municipal solid waste incinerators. Because the temperature of flue gas from the incinerator is comparatively low after the waste heat boiler and air pollution control units, 250 to 300 degrees Celsius, the final clean-up of the flue gas should be conducted at a low temperature. First, we had conducted laboratory experiments to confirm the reduction of PCDDs by catalytic destruction. And, at the next stage, we had conducted test plant experiments. Moreover, we have a plan to proceed to the pilot plant experiments. We present here the preliminary results obtained from these experiments, and the availability of the catalytic destruction for PCDDs in flue gas is reviewed in this short report.