BACKGROUND: Nutrition is essential for schoolchildren to reach their full potential psychologically and cognitively. Malnutrition, which is prevalent among aboriginal schoolchildren in Malaysia, can interfere their learning and academic performance. Developing a module to be used during a school-based nutritional intervention program is essential to ensuring that students develop healthy eating habits and lifestyles. Thus, this study aims to develop and validate nutrition education module focusing on aboriginal schoolchildren for the eat right future bright (ERFB) nutrition education program. MATERIALS AND METHODS: This cross-sectional study was conducted in three steps: Step 1: development of module based on literature reviews, Step 2: content and face validation of the module by the expert panels, and Step 3: face validation of the module by target users. This study has used the validation form proposed by de Castro. This form consists of seven aspects, two aspects related to content validity and another four aspects related to face validity. A content validity index (CVI) was used to analyze the content validity. Two formulas were used to calculate CVI, which were I-CVI and S-CVI. Meanwhile, the data for module's face used the level of agreement. RESULTS: Both I-CVI and S-CVI obtained more than 0.78 and 0.80, respectively, which indicate that the module has good content validity. Moreover, for face validity, the total of agreement from expert panels and target users was more than 75%, which is considered face validated. CONCLUSIONS: In conclusion, the module that has been developed has good content validity and can be used by teachers in teaching appropriate nutrition knowledge to aboriginal primary schoolchildren.