To provide a particulate cleaner for a diesel exhaust gas for removing particulate matter in the exhaust gas, using a honeycomb structure made of porous ceramics and heat-resistant fiber.

The particulate cleaner for the diesel exhaust gas comprises longitudinal gas tubes 6, formed in the honeycomb structure (body 5) made of porous ceramics, where each adjacent gas tube 6 is sealed at the opposite end, heat-resistant fiber 10-1 of thick thread filled in a gas tube 6-1 which is open for an exhaust gas inflow, heat-resistant fiber 10-2 of thin thread filled in a gas tube 6-2 open for an exhaust gas outflow, as well as an oxidation catalyst carried on honeycomb walls (filtration section 8), and heat-resistant fiber 10. The exhaust gas from a diesel engine 2 flows through a route starting from the bed of heat-resistant fiber 10-1, to the honeycomb walls (filtration section 8) and then to the bed of heat-resistant fiber 10-2.