As a mixture of both words 'Web' and 'Cartoon'. Webtoon is a sort of cartoons that come up with development of information technology. Web-toon is not just a cartoon but an OSMU for culture industries such as movies, dramas, games and more. While Web-toon's value is increasing, activities of securing and managing it as archives seem quite slow. To preserve web-toon as a web archives and digital contents which has long-term archival value effectively web archiving system should be required. This study analyzes webtoon's type and features. Also, requirements for web archiving system are extracted from case analysis of existing digital archives. With the results, this study proposes a method to design and implement web-toon archives based on OAIS reference model.