This study aims to describe the analysis of development needs and produce multi-representation-based e-books for basic physics courses. The study utilizes a mixed-method, explanatory sequential design model. Currently, the research is limited to the needs analysis phase before developing multi-representation-based e-books. The development of a multi-representation-based basic physics e-book is based on several aspects of student needs, including the student's basic physics lecture process, difficulties in understanding basic physics material, and the learning resources used by students to study basic physics material. Students require integrated multi-representation in solving physics problems. The study involves 76 students from the Department of Physics Education, Musamus University, Merauke. The analysis results indicate that 91.1% of students in the physics education department at Musamus University express a need for multi-representation-based e-books in the basic physics learning process. This is supported by student response data. Firstly, the majority of students still rely on conventional teaching methods during lectures, hence they require interactive media to enhance the quality of learning. Secondly, most students have limited access to learning resources, mainly relying on textbooks. Thirdly, students encounter difficulties in understanding physics concepts. Lastly, students express a need for multi-representation-based e-books in their physics lectures.