Chinese herbal cataplasm Xiaozhang Tie showed good adjuvant effect on patients of cirrhotic ascites by means of promoting the gas passing and releasing abdominal distension. This study will focus on the mechanism of Xiaozhang Tie on cirrhotic ascites and its active components based on the gastrointestinal motility. Firstly we will observe the effect of Xiaozhang Tie on gastrointestinal motility, abdominal pressure, renal blood flow and ascites as well as their relationships in rats with cirrhotic ascites. Secondly we will assess their gastrointestinal hormones, rennin and angiotensin, in particular, viability and functions of Cajal interstitial cell relating to stem cell factor (SCF)/c-kit signal pathway will be investigated. At last, the active components in the blood by transdermal absorption will be detected. The scientific hypotheses of Xiaozhang Tie serving good acceleration effect on cirrhotic ascites by means of promoting gastrointestinal motility to release abdominal distension and raise renal blood flow as well as its main active components by percutaneous absorption will be verified. Furthermore, Xiaozhang Tie′s action mechanism will be clerified and the basic research levels of TCM extrenal treatment would be improved.