Contract summary generation method and device and contract key information extraction model training method

The invention discloses a contract summary generation method and device and a contract key information extraction model training method. The method comprises the steps of obtaining a target contract text and a question text for the target contract text; according to a contract entity of a target contract text, obtaining a key information document related to the target contract text from a corpus; according to the key information document, performing paragraph screening processing on the target contract text to obtain a plurality of document paragraphs of the target contract text; processing the document paragraph and the question text by adopting a neural network model to obtain target contract key information for the target contract text; and generating a contract abstract for the target contract text according to the target contract key information. According to the embodiment of the invention, the contract summary is generated according to the format which is pleasant for the user, so that the cost of manu