The invention discloses a physical regeneration device for a denitration catalyst and belongs to the field of regeneration devices for selective denitration catalysts. The physical regeneration devicefor the denitration catalyst is characterized by comprising a cleaner shell, a catalyst transport device, a high-pressure airflow cleaning device and a high-pressure liquid flow cleaning device, wherein the cleaner shell comprises a gas inlet pipe orifice, a regeneration cavity and a gas outlet pipe orifice; the high-pressure airflow cleaning device is arranged at the joint of the regeneration cavity and the gas inlet pipe orifice; the high-pressure liquid flow cleaning device is arranged at the joint of the regeneration cavity and the gas outlet pipe orifice; and the catalyst transport device is capable of loading a catalyst to pass through the high-pressure airflow cleaning device and the high-pressure liquid flow cleaning device in the cleaner shell. According to the physical regeneration device for the denitration catalyst disclosed by the invention, floating dust and impurity components causing failure in the catalyst can be completely cleaned by virtue of high-pressure airflow and liquid flow, and the physical regeneration device is high-efficiency, economic, environmental-friendly and suitable for popularization.