PURPOSE: To provide a diesel particulate filter having structure which is not necessary for a closing plug on the exhaust gas rear flow side end part of a pipe shaped filter main body, and provide manufacture thereof.

CONSTITUTION: A plurality of pipe shaped filter main bodies 2 are assembled on a casing arranged in the exhaust system of exhaust gas discharged from a diesel engine. The pipe shaped filer main body 2 is formed in such constitution that opening parts 4 of both ends are positioned on nearly same surface so as to form an exhaust gas leading inlet 3, and the range other than the opening port 4 is closed by a plate 1.