This study aims to develop an E-Book-Based Guidebook for Gorontalo Langga Martial Arts Movement. Gorontalo itself is a province located in Indonesia, precisely on the northern island of Sulawesi. This research uses research and development methods. The experimental subjects used in this research and development were Gorontalo cultural experts, 10 small group trials, and 20 large group trials. The data obtained in this research and development are qualitative and quantitative. Quantitative data obtained from the results of the questionnaire which will be divided into product trials, the questionnaire used is an assessment questionnaire. This development model includes product analysis, product development, expert validation and revision, product testing, and final product manufacture. As a result, this book was declared feasible in a large-scale trial with 90% results. In conclusion, this book can be given and circulated widely to the general public.