Question and answer model training method and device based on table image recognition and medium

The invention discloses a question and answer model training method and device based on table image recognition and a medium. The method comprises the steps of obtaining image data containing a table; preprocessing the image data to obtain table image data for establishing a coordinate system; content identification and information reconstruction are carried out on the table image data to construct json file data with a table association relationship, and the json file data comprises coordinate information of a rectangular frame in a table and character identification information in the rectangular frame; constructing a training data set according to the json file data and the corresponding table image data, and constructing prompt according to the json file data; a preset pre-training model is trained through the prompt and the training data set to obtain a question and answer model. According to the method, the corresponding table structure and the association relationship can be identified from the table i