The invention relates to the technical field of
engineering drawing
information extraction, in particular to a
description type drawing
information extraction method and device, equipment and a medium, and the method comprises the steps: extracting a text serial number based on a rule, verifying a serial number result by adopting a
large model, and judging a statement division position when the serial number does not exist; combining one or more adjacent single-line texts into a semantic complete description statement; grouping the serial number of each description statement based on a credibility rule, constructing a description statement tree hierarchical structure, and structurally positioning and splicing each node content based on a keyword of preset information to obtain information-related
phrase content; and extracting preset information items by adopting a rule with credibility and a
large model respectively, and when the results of the rule and the
large model are contradictory, carrying out selection or reutilization of the large model for judgment according to the credibility to obtain a final information result. Therefore, the problems that in the prior art, the credibility degree of the result is difficult to determine, and the situation that the large model answers mistakenly cannot be judged and dealt with are solved.