The government through the Ministry of Education and Culture launched a new policy that was quite controversial, abolishing the National Examination and replacing it with a new assessment mechanism, namely the Minimum Competency Assessment (Asesmen Kompetensi Minimum, abbreviated as AKM). The implementation of AKM has elicited various responses from schools, teachers, and the community. One of the responses that emerged was confusion regarding the concepts, mechanisms, and forms of questions in the AKM. This study aims to answer these issues, by developing a supplementary book for preparing AKM-based questions. This study is developmental research by adapting the Borg and Gall model. There were four stages in this study, including planning, developing, try-out, and dissemination. Data collection technique used questionnaires, interviews, and observations. Quantitative data from the questionnaire were analysed using percentage analysis techniques. While the qualitative data used were descriptive analysis techniques. Based on the results of the validation and try-out had been carried out, this supplementary book can be said to be valid and worthy of distribution. The validity test and try-out of prospective users showed that the product that had been developed provides benefits for teachers. The supplementary book for preparing AKM-based questions is a product that can provide information about technical steps for teachers in developing learning evaluation models. However, some improvements still need to be made following the suggestions obtained from the validators and potential users.