To provide a dry ice cutter doing without a worker holding the dry ice when it is cut.

The cutter 1 includes: a horizontal supporting base 205; a placing base 206; and conveyor base 301. The horizontal supporting base is arranged in a horizontal direction between a pair of saw wheels 201 and 202, and has a space 208 in which a band saw 203 is passable. The placing base for placing dry ice 100 has a pair of front-back direction guide plate 209 which is installed to be movable in the front-back direction of a cutting direction by the band saw 203 on the horizontal supporting base 205 to guide the front and back of the dry ice 100, and which includes a clearance 210 through which the band saw 203 is passable. The conveyor base includes a pair of right-left direction guide plate 306 which is installed to be movable in the right-left direction vertical to the cutting direction by the band saw 203 to guide the right and left of the dry ice 100, and which is movable in the front-back direction while being positioned between the pair of front-back direction guide plates 209.