摘要
In today’s big science era,the demand for interdisciplinary knowledge service is becoming more and more urgent.However,as an important platform for interdisciplinary knowledge service,digital library still organizes knowledge according to disciplines by taking document as unit,which makes it difficult to break the barrier between disciplines,resulting in the dispersion of knowledge about the same thing in different disciplines.In order to support interdisciplinary research,the knowledge organization method of digital library needs to go deep into interdisciplinary knowledge organization based on knowledge content.