The present invention relates to a cutting product production method and a cutting product production system, and according to one aspect of the present invention, provided is a cutting product production method comprising the steps of: calculating a defect distribution density according to the width direction of fabric on the basis of fabric defect information; and determining a virtual cutting line such that a unit product having a first size is allocated to an area having a relatively large width-directional defect distribution density and that a unit product having a second size larger than the first size is allocated to an area having a relatively small width-directional defect distribution density.