To solve the problem of specific content format requirement and difference in carrier document formats and realize the purpose of knowledge reuse, an automatic generation method of design document based on reusable text configuration templates was proposed. Firstly, knowledge modules were transformed into reusable text configuration templates which can easily be stored in computer. Secondly, according to design requirements, template view set was created by collocate the text configuration templates. And then, design document meeting different design demands was generated with a series of operations such as analysis of identifiers, insertion of auxiliary documents, and so on. Finally, a case of the cold bending thin-walled steel structure text configuration template generate related design documents was constructed. The result shows that this method has high efficiency, can generate meet different demand design document.