Objective:To carry out a scoping review on the current status and influencing factors of self-advocacy among cancer patients, so as to provide a basis for future intervention research.Methods:Research on cancer patients' self-advocacy was electronically retrieved on PubMed, Embase, CINAHL, Web of Science, Scopus, China National Knowledge Infrastructure, WanFang data, VIP, and China Biology Medicine disc. The search period was from database establishment to October 31, 2023. The included literature was summarized and analyzed.Results:A total of 17 articles were included. The influencing factors of cancer patients' self-advocacy mainly involved four aspects of general demographic factors, disease factors, social factors, and psychological factors.Conclusions:The influencing factors of cancer patients' self-advocacy are multifaceted. We should continue to explore the controversial influencing factors, conduct research on the self-advocacy of male cancer patients, and develop reasonable and effective intervention measures to enhance the self-advocacy level of cancer patients.