A method for constructing an industry knowledge mapping database, comprising the following steps: acquiring industry data from a data source (S51); performing data processing on the industry data to extract an entity related to the industry and a corresponding entity attribute and/or an entity relationship (S52); and constructing the industry knowledge mapping database based on the extracted entity, entity attribute and/or entity relationship (S53). A method for monitoring a specific media event related to an industry based on the constructed industry knowledge mapping database, comprising the following steps: acquiring Internet media data (S31); performing event detection, event evaluation and screening based on the acquired Internet media data to acquire the specific media event related to an industry (S32); recognizing a directly related entity corresponding to the specific media event (S33); based on the directly related entity, accessing the industry knowledge mapping database, to determine an indirectly related entity corresponding to the specific media event (S34); and sending an early warning message to the directly related entity and/or indirectly related entity (S35).
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