The invention provides a student wrong question automatic acquisition method based on an intelligent
correction system. The method comprises the following steps: S1, acquiring a homework set of any student and inputting the homework set into the intelligent
correction system to obtain a correction result; s2, judging whether the correction result meets a triggering condition or not: if so, turning to S3; if not, returning to the step S1; s3, extracting multi-
modal wrong question contents including question contents, student answering contents and correction results from the homework set; s4, based on the
knowledge graph and the error classification
system, performing structured information labeling on the multi-
modal error content to obtain an error mastering result; step S5, obtaining a redo correction result of the student for the wrong questions and updating a mastering result of the wrong questions; and S6, storing the updated error question mastering result, the updated multi-
modal error question content and the updated structured information according to a general
data format. The method has the beneficial effects that full-process
automation can be realized, multi-modal information is covered, and high-quality structured error data is generated.