The invention belongs to the crossing field of
computer technology and
business management, and discloses a purchase return risk early warning and management method and
system based on multi-mode intelligent auditing,
electronic equipment and a computer readable storage medium. The method comprises the following steps: segmenting a PDF
invoice image through an improved Apache PDFBox analyzer; a CLIP model and an OCR technology are combined, a cross-
modal attention layer is used for correcting an OCR text, a multi-
modal consistency difference value is generated, and
invoice authenticity is judged; when a false
invoice is detected, generating a standardized risk event, and extracting supplier, purchaser and transaction edge data from the
graph database to construct a
time sequence sub-graph; and identifying an abnormal mode based on the graph neural network, verifying the risk by using a
time sequence risk scoring model, and executing a
treatment strategy. According to the method, through multi-
modal fusion, dynamic graph analysis and
time sequence modeling, the problems of low false invoice detection precision, long abnormal fund tracing time consumption, risk prediction
lag and the like in traditional auditing are solved.