Fault knowledge text extraction method and device, equipment and medium

The invention discloses a fault knowledge text extraction method and device, equipment and a medium, and the method comprises the steps: sequentially carrying out the main and guest entity prediction of a product description text, and obtaining a first prediction result of a main entity and a first prediction result of a guest entity, performing customer-main entity prediction on the product description text in sequence to obtain a customer entity second prediction result and a main entity second prediction result; based on the main entity first prediction result and the main entity second prediction result, a fault main entity is extracted from the product description text, and based on the customer entity first prediction result and the customer entity second prediction result, a fault customer entity is extracted from the product description text; and constructing a fault knowledge text based on the fault main entity and the fault customer entity. According to the scheme, the fault knowledge extraction eff