Dyspnea is a distressing symptom of terminal cancer patients. Lack of an appropriate assessment tool for dyspnea disturbs the establishment of proper management. The purpose of this study was to develop a reliable and valid measure which assesses the multidimensional nature of dyspnea among patient with advanced stage of cancer. The tool was administered by the principal investigator to the participants. The developed dyspnea scale contains 12 items under three domains; these domains are ‘Physical triggers’, ‘psychological triggers’, and ‘environmental triggers.’ It is recommended to apply the tool in with different types of advanced cancer disease for more psychometric confirmation.