To prevent a crack, chipping, or the like and dispersion of dimension from generating, and enable a product of precise dimension to be manufactured, by using a cylindrical member for cutting formed with a grinding tool on one end part, and cutting a porous ceramic material into a cylindrical form while rotating the center of the cylinder as a rotating shaft.

A material to be cut 25 is loaded on a loading mount 11, and an air cylinder 12 is elevated to position the material in front of a fixing table 14. Another air cylinder 22 is extended to move a bar-like member 21, and a presser part 21a is brought in contact with the material to be cut 25 to fix it to the fixing table 14. Further while a motor 34 is operated to rotate a cylindrical member 31, a moving member 35 is moved on the material 25 side by the other driving means. A grinding tool 31a fitted to the extreme end of the cylindrical member 31 is brought in contact with the material 25 to cut the material 25, in addition, the cylindrical member 31 is pushed into the intrior of the material 25 with the progress of cutting, and a waste presser part 41 abuts onto the material 25 to prevent the waste from falling.