Abstract: According to the demands and problems of undergraduate training in colleges and universities,taking the“Introduction to Drone Remote Sensing”as an example,the paper studied the teaching reform and methods of interdisciplinary contents in undergra-duate elective courses.By analyzing the content of “Introduction to Drone Remote Sensing”,this paper constructs a teaching mode of modularization and subject discussion with cross contents.combined with the professional foundation of the undergrate public elective coutents,it puts forward the layered teaching methods and advices,forming a content processing and teaching mode system of interdisciplinary course.The purpose of this article is to provide a reference for researching universities to explore the promotion strategies and ways of promoting crossdisciplinary content courses.