The invention discloses an automatic material coding method based on database management. The method includes the following steps: material information is first collected, the related material information is entered through a Web page interface, the types of the material information are then judged, corresponding codes are automatically generated according to the judgment of the material information types, the codes and the material information are then uploaded to a database, the material information and the codes are correspondingly classified and stored by the database, database-stored information is then generated, and material information query and modification windows are set on the Web page. Compared with the prior art, the automatic material coding method based on database management has the characteristics of reasonable design, convenience in use and the like, and effectively decreases the workload in material coding and the workload of operators and increases working efficiency, and moreover, the error rate of coding is greatly decreased by the method of automatically generating codes through a system.