ABSTRACT: Objectives:To determine the clinical characteristics and risk factors of Deep Venous Thrombosis (DVT) in patients with gynecological malignant tumor, facilitating gynecologists better prevent the fatal complication. Methods:The patients with gynecological malignant tumor treated in department of gynecology of our hospital between May 2013 and May 2018 were reviewed retrospectively. The clinical data of patients including gender, age, tumor staging, adenocarcinoma, surgery, operation time, hypertension, hyperlipemia, diabetes, coronary heart disease, radiotherapy, chemotherapy, hospital stay, and postoperative rehabilitation exercise were collected to analyze the clinical characteristics of patients and determine the risk factors of DVT. Results:In the current study, 67 patients were included in DVT group, and 554 patients were included in Non-DVT group. There were significant differences in age, hypertension, hyperlipemia, operation time, adenocarcinoma, tumor staging, radiotherapy and postoperative rehabilitation exercises between DVT and non-DVT groups (p<0.05). However, there was no significant differences in gender, coronary heart disease, diabetes, surgical treatment and hospital stay (p>0.05). In multivariate analysis, the factors including age, hypertension, adenocarcinoma, radiotherapy, and hyperlipemia were independent risk factors, while rehabilitation exercise was protective factor for DVT. Conclusion:In cases of gynecological malignant tumor, DVT screening should be given due importance, especially for those patients with old age, hypertension, hyperlipemia, adenocarcinoma, or history of radiotherapy. Rehabilitation exercise should be encouraged in these patients.