ObjectiveTo systematically review the incidence of financial toxicity among cancer patients in China. MethodsThe Cochrane Library, Web of Science, PubMed, Embase, CINAHL, CNKI, and WanFang databases were searched to collect studies on the prevalence of financial toxicity among cancer patients in China from January 2016 to April 2023. Two reviewers independently screened the literature, extracted data, and assessed the risk of bias of the included studies. A meta-analysis was performed by using Stata 16.0 software. ResultsA total of 24 studies involving 8 799 participants were included. Meta-analysis results showed that the prevalence of financial toxicity among cancer patients was 67.4% (95%CI 60.9% to 74.0%) in China. The subgroup analysis showed that sex, educational level, type of medical insurance, cancer site and stage, the cut-off of the instrument, and region were all influential factors of financial toxicity among cancer patients. ConclusionCurrent evidence shows that high prevalence of financial toxicity among cancer patients. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.