Initially, we will collect 30 patients with type 2 diabetes with a ≧ 3-month history of dyspeptic symptoms. An upper GI endocopy will be obtained to rule out possibility of organic obstruction. Cardiac arrhythmia and pregnancy will be excluded. None of them ever received abdominal surgery. Patients are then randomized to one of two treatment arms. Arm I: 15 patients received EA stimulation on acupoints St-36 (Zusanli) and Li-4 (Hegu). Arm II: 15 subjected to EA stimulation on non-acupoints around St-36 and Li-4 with the same electrical pulse and amplitude. Gastroparesis Cardinal Symptom Index (GCSI) and solid-phase gastric emptying time will be measured on baseline and after EA. In addition, serum gastrin, motilin, human pancreatic polypeptide, fasting blood sugar, and postprandial glucose levels will be also monitored.