Abstract: The research on the actual high-risk points of faults on the intelligent profile cutting production line for ships can improve the accuracy and precision of profile cutting, assist in the iterative upgrading of intelligent cutting production lines, so that it can play a greater technical advantage and create rich economic value. Through in-depth exploration and research on the size defects, cutting defects, and process parameter defects of high-frequency faults occurring on the profile cutting production line, various meaningful improvement measures have been proposed. Revising the cutting linkage coefficient and reaction time in control, optimizing the cutting positioning device in equipment, proposing the external arc starting method and layered feeding method in process technology, and adding a frame compensation algorithm in the program to greatly improve and expand the application scenarios and efficiency of intelligent profile cutting lines.