Teaching materials and content on UNP e-learning are already available and can be accessed by students, but case study-based teaching materials with digital content are not available. Teaching materials in the digital form need to be further developed, especially case study-based ebooks. This study was aimed to develop digital teaching materials based on case studies for DDIP courses. This type of research is the R&D ADDIE model. The participant of this research was 82 prospective teachers or students in LPTK, Padang State University (UNP). The data collection is used questionnaire and observation. All instruments used have been tested for instrument validity by several experts consisting of various sciences including learning media, learning evaluations, learning models, and strategies. The development of digital teaching materials based on access studies uses video as an introduction to the case. Based on the expert assessment of the case study-based ebook validation, 78.1 values range from 61 to 80 which is interpreted as valid. Then the ICC score or ebook intra-class correlation based on case studies, the overall rater level of consistency is good, 0.767 the consistency level is good. Hence, it can be said that this case study-based digital teaching material has been valid and effective, especially for prospective teachers in LPTKs. It can be stated that during the COVID-19 pandemic, it is necessary to develop digital teaching material to increase student activity in accessing digital teaching materials and student activity during the learning process.