The present invention relates to an edge cutting wheel which is to cut the edge of a stack where multiple films are stacked. The edge cutting wheel comprises: a rotary shaft; and multiple cutting members which protrude to the edge of the stack and are rotated around the rotary shaft to cut the edge of the stack while successively coming in contact with the edge of the stack, wherein the stack is divided into NxM cutting blocks by the cutting members, herein, the N is the number of the cutting members, and the M is the cutting number of each cutting member.