Abstract： Objective:To conduct a scoping review of the current research status, influencing factors, and assessment tools regarding social isolation in lung cancer survivors and provide research ideas for clinical medical and nursing staff to develop interventional measures.Methods:Based on the framework of a scoping review, systematic searches were conducted in databases including CNKI, Wanfang, VIP, CBM, Embase, PubMed, Web of Science, CINAHL, and Cochrane Library for studies on social isolation in lung cancer survivors, up to March 18, 2023.Results:Eighteen articles were included, with research distributed across three continents (Asia, North America, Europe) and in seven countries, including China, the USA, and Spain. Frequently used research tools included the University of California Los Angeles Loneliness Scale and the Cancer Loneliness Scale. Rates and severity of social isolation varied across different studies. Factors influencing social isolation in lung cancer survivors included demographic factors, disease-related factors, symptom factors, and psychosocial factors.Conclusions:Social isolation in lung cancer survivors can affect their quality of life to a certain extent. Although there are various tools for assessing social isolation in lung cancer survivors, there is a general lack of specific assessment tools. This suggests that medical and nursing personnel should consider developing and applying more specific research tools when developing related assessment tools in the future and develop personalized intervention measures based on influencing factors to help patients alleviate social isolation.