The work aims to systematically examine the current status, effectiveness, and limitations of intelligent care systems for managing urinary and defecation needs in bedridden elderly people, providing reference for addressing these challenges by multidisciplinary insights. With the scope review as the framework, the research questions were determined and the literature related to the intelligent care for bedridden elderly people's urinary and defecation was searched from databases including PubMed, Embase, CINAHL, Web of Science, Scopus, Cochrane Library, Ovid, SinoMed, CNKI, Wanfang Database, and VIP. The literature published up to March 2024 was considered and screened according to the inclusion and exclusion criteria. Relevant data in the included literature were extracted, collected, summarized, and reported. 39 documents were included in the review. The intelligent care for bedridden elderly people encompassed intelligent nursing beds and robots, intelligent monitoring technologies and intelligent systems which were gradually improved and intelligent in functions and mainly applied in hospitals, homes, and nursing homes or sanatoriums. The disciplines involved included mechanical and electrical engineering, nursing, biomedical engineering, electronic information technology, computer science, clinical medicine, public health and preventive medicine, automation, psychology, and management science and engineering, illustrating the interdisciplinary nature of this research area. Intelligent care technologies for managing urinary and defecation could significantly alleviate the burden on caregivers and enhance the quality of life for bedridden elderly people. However, the application of these technologies faced challenges related to technology, functions, design, ethics, and privacy. Future research should focus on overcoming these technical challenges, enhancing capabilities for defecation ability assessment and personalized rehabilitation training prescriptions, designing equipment that better suits human anatomy, and is aesthetically pleasing while considering ethical and privacy concerns and strengthening interdisciplinary cooperation and conducting clinical validations.