腹膜是胃癌常见的复发和转移部位，腹膜复发和转移是影响胃癌患者预后的重要因素。作为腹膜转移的早期状态，腹腔游离癌细胞的检测是预测腹腔复发、估计预后、指导治疗的可靠指标。文章就胃癌腹膜游离癌细胞的研究进展进行综述。

Peritoneum is a common recurrent and metastatic site of gastric cancer, and peritoneal metastasis and recurrence may have significant impact on the outcomes of patients with gastric cancer. As the early state of peritoneal metastasis, the detection of peritoneal free cancer cells may serve as a reliable way to predict peritoneal recurrence, estimate prognosis and guide treatment. The research progress of intraperitoneal free cancer cells of gastric cancer is reviewed in this paper.