Disability sports has become more popular since the last the five decades. The increase in participation will cause pressure among athletes to achieve optimum sports performances. Through proper nutrition, the athletes’ sports performance can be enhanced. The benefits of nutrition in sports performance among athletes can be attained if their level of nutritional knowledge and habits are identified. This paper intends to present the design of the questionnaires from previous literature and predicted questionnaire model for this study. This study aims to develop, a questionnaire that combines both nutritional knowledge and supplement habits among disabled athletes in Malaysia, to validate and determine the reliability of the developed questionnaire. Expert validation, test-retest reliability, and internal consistency reliability will be used in this study. In expert validation, seven experts in nutrition, dietetics and sports nutrition field will be involved, and the data will be measured using the content validity ratio (CVR). Pearson Correlation Coefficient and Cronbach Alpha will be applied to determine the internal consistency reliability and test-retest reliability in determining the reliability of the developed questionnaire. As a result, a valid and reliable questionnaire that combines both nutritional knowledge and supplement habits specifically for Malaysian disabled athletes will be established, thus optimizing the growth of Malaysia disability sports. However, this research has not completed yet.