Object To explore the clinical medication rule and feature of TCM on hepatocellular carcinoma with ascites. Methods We collected the clinical data of 186 hepatocellular carcinoma patients with ascites, established the clinical drugs database, and used frequency analysis and association rules to research the medication characteristics. Results In 186 patients, the proportion of TCM syndrome type from high to low in turn was liver blood stasis syndrome, liver blood stasis syndrome and spleen deficiency and dampness, spleen deficiency and dampness...