Model training method, system and equipment based on vertical application of block chain database and medium

The invention discloses a block chain database vertical application-based model training method, system and device, and a medium, and relates to the technical field of information. The method comprises the following steps: acquiring identity information of a user, and judging whether an identity corresponding to the identity information is a professional user or not; if yes, associating a block chain verification database of a professional field corresponding to the professional user category; obtaining feedback data of the basic large model, and performing multi-data node verification on the feedback data in a block chain verification database to generate associated data matched with verification; wherein the basic large model is obtained by taking industry data obtained from the Internet and an enterprise database as training data and training based on a deep learning algorithm according to the training data; and inputting the associated data into the basic large model, and obtaining response data based on