[영문]This overview for the special issue of Health Education qqqamp; Behavior on qqqquot;Health Disparities and Social Inequitiesqqqquot; briefly outlines the transdisciplinary (TD) approach to research and examines the scope of TD science. The need to embrace basic science as well as several domains of applied research is discussed along the TD qqqquot;pipelineqqqquot; from discovery to development to delivery to policy. The overview concludes with selected examples of the emerging TD science of disparities. One central challenge for a TD approach is the need to strengthen what is being called qqqquot;the science of disseminationqqqquot; along with improving the qqqquot;dissemination of evidence-based science.qqqquot;