Drawing modification method, product management system and computer storage medium

The embodiment of the invention discloses a drawing modification method, a product management system and a computer storage medium, which are used for verifying a to-be-verified design drawing to determine whether a difference result meets a preset requirement or not, so that a user modifies the design drawing more efficiently. The method comprises the steps: judging whether the difference resultof second material information corresponding to a to-be-verified design drawing and first material information meets the preset requirement or not: if not, enabling a user to modify the to-be-verifieddesign drawing according to the difference result, and sending generated modification information to design software, and employing the design software for modifying the to-be-verified design drawingaccording to the modification information to obtain a modified target design drawing. As the user modifies the design drawing to be verified according to the difference result, the material information such as the material sta