CAD drawing batch typesetting processing method

The invention discloses a CAD (computer-aided design) drawing batch typesetting processing method, and particularly relates to the technical field of costume design, and the method comprises the steps: carrying out the feature extraction of a costume CAD drawing, extracting the geometric features of an object in the costume CAD drawing in an image space in an annular segmentation mode, carrying out the information matching of a costume typesetting library and a typesetting feature recognition library, and carrying out the recognition of the typesetting features of the object in the costume CAD drawing; in the process of typesetting and bed separation, typesetting files and clothing CAD drawings can be retrieved through different geometric features, the recognition accuracy is improved, the range of typesetting files needing to be retrieved for typesetting is narrowed, meanwhile, pattern units can be automatically arranged in a designated area, the integrity of the pattern units is guaranteed, the overall form