This study aims to evaluate the efficacy of an intervention guided by the IFSMT, in which structured education and digitally delivered reinforcement strategies are designed to enhance self-management processes, including knowledge and beliefs, self-regulation skills, and social facilitation, among patients undergoing maintenance hemodialysis. The intervention, delivered via a mobile platform three times daily over two months, seeks to improve fluid control adherence and hemodialysis self-management behaviours, and to reduce interdialytic weight gain and stabilise pre-hemodialysis mean arterial pressure, compared with standard education alone.