Objective To identify the incidence of dreams of the patients undergoing gastroscopy under propofol anesthesia and its influence of patients’ satisfaction during the anesthesia recovery period. Methods 189 patients of ASA I~II received the gastroscopy examination under total introvenous anesthesia with propofol using target concentration infusion technique. According to the conventional monitor records, the plasma concentration of propofol was set at 3~5µg/ml. Anesthesia recovery period was observed after drug discontinuation. Patients were asked whether they had dreams during anesthesia when they wake up from anesthesia and orientation ability recovered. The satisfaction of anesthesia was assessed using the visual simulation grading (VAS). The same assessment was repeated 2 hours after complete recovery of consciousness. Results All patients completed the trial and the average concentration of propofol was 4.5µg/ml. 119 patients had dreams based on the survey (63.0%). Those who had dreams are significantly younger (45.6±13.3 years old) than those who did not (49.8±11.3 years old)（P<0.05）. Eight patients had the somniloquism during the recovery period and 15 patients had temporarily emotional excitation after the consciousness recovered. All patients were satisfied with the anesthesia effect but 1. For the VAS grading, there are no significantly difference between the dreamers and non-dreamers. Conclusion Incidence of dream during gastroscopy examination under propofol anesthesia is high, which may be due to the temporary emotional excitation. Lower age is one important factor for dream occurrence. Dream does not influence the satisfaction of the patients undergoing the gastroscopy.