Objective: To explore the clinical effectiveness and therapeutic mechanism of Shuwei Decoction (舒胃汤) in treating functional dyspepsia (FD). Methods: A total of 124 FD patients were randomly di vided into two groups: Shuwei Decoction group (60 cases) and the control g roup (64 cases) treated with cisapride. After one month treatment, all patients were examined with motilin and electrogastrography (EGG). Results: The therapeutic effectiveness of Shuwei Dec oction group wa s much better than that of the control group (P