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BACKGROUND: The purpose of this meta-analysis of current studies was to assess the efficacy of electroacupuncture for cancer-related insomnia. METHODS: A comprehensive search was conducted encompassing randomized controlled trials examining the efficacy of electroacupuncture in treating cancer-related insomnia across CNKI, VIP, Wang Fang, PubMed, Embase, Cochrane library, and Web of Science, with a search deadline of December 26, 2023. The Cochrane manual's risk-of-bias evaluation was used for quality assessment, while Stata 15.0 was used for the data analysis. RESULTS: Eight randomized controlled studies involving 537 individuals were finally included. Meta-analysis results suggested that electroacupuncture improved total sleep time [SMD = 0.68, 95% CI (0.31, 1.06)], sleep efficiency [SMD = 1.26, 95% CI (0.02, 2.50)], and reduced Pittsburgh sleep quality index [SMD = -0.44, 95% CI (-0.63, -0.25)], insomnia severity index [SMD = -1.23, 95% CI (-1.88, -0.58)], and sleep onset latency [SMD = -0.76, 95% CI (-1.36, -0.15)] in cancer patients. CONCLUSION: Based on the current study, we found that electroacupuncture may have a better effect on insomnia in cancer patients.