The research of modern secretarial science has obvious interdisciplinary characteristics，which are manifested in three aspects：First，Secretarial science is a comprehensive knowledge system from the beginning. Second，Secretary study implies cohesiveness and a way to generate new subject knowledge. Third，Secretarial science has been learning from，absorbing，integrating theories and methods of other disciplines. The core of interdisciplinary research in Secretarial science is not its knowledge but the problem. This kind of research emphasizes the overall coordination and cooperation of research objectives and tasks as the basic means，and uses interdisciplinary knowledge and methods to study and solve complex problems in the field of Secretary. In short，interdisciplinary research is the inevitable trend of the  development of Secretarial science in the new era.