Abstract:ObjectiveTo systematically evaluate the occurrence and characteristics of postoperative venous thromboembolism (VTE) in patients with lung cancer, and to provide a scientific basis for the relevant postoperative prevention and control of lung cancer patients. Methods The CNKI, VIP, SinoMed, WanFang, PubMed, Embase, and Web of Science databases were searched for cross-sectional studies on the incidence of postoperative VTE in Chinese lung cancer patients, and the retrieval time limit ranged from library establishment to October 2021. Meta-analysis was conducted by Stata 15.1 software. Results Finally, 11 articles were included, involving a total of 2 862 patients with lung cancer after surgery, of which 326 patients developed pulmonary VTE. The results of the Meta-analysis showed that the postoperative VTE incidence of lung cancer was 16.0% (95% CI ：0.12-0.20). SubgrouPanalysis showed that the incidence of VTE after lung cancer surgery in China was significantly different in patients with/without smoking history (20%/10%), with/without history of hypertension (23%/10%), with/without history of coronary heart disease (21%/11%), with/without diabetes history (19%/13%), elderly/young and middle-aged (24%/14%) (P<0.01). Conclusion The incidence of VTE in Chinese patients after lung cancer surgery is higher, and the incidence of VTE after lung cancer surgery is higher with a history of smoking, hypertension, coronary heart disease, and diabetes.