Abstract: ObjectiveTo explore the effect of external application of Xiaoji powder on the gastrointestinal motility. Methods①Thirty mice of 1822 g were divided into 3 groups.Measure their length and the distance from forefront of the carbon at the end to the cardia,and calculate the percentage of the distance /the fulllength,that is,the subrate promoter.②Take a section of the jejunum (about 3 cm),ligate both ends of the intestine with wire,tie one end to the ventilation hook,put it in the Michael's bath trough filled with Tyrode solution,access to the oxygen with 5% CO2,and control water bath temperature at （35.0±0.1）℃.The other end lines in the the transducer,which had about 2 g load,and connect with recording devices to observe the normal movement of intestinal smooth muscle.And then, feed the mice with medicine according to three different orders and PsG its waveform.③ Wistar rats 30.Experiment group: 10,with external application of Xiaoji powder on Shenque Point and Zhongwan Point of rats.Spleen deficiency group: 10,making models and gastrointestinal bioelectric detection at the same period with experiment group,but without any drug.Healthy rats group (referred to as the blank group): normal rats 10,with the gastrointestinal bioelectric detection at the same period with the above two groups. Results①Five days after abdominal application of Xiaoji power(0.1 g per mouce),the medicine showed a very significant effect in enhancing gastrointestinal propulsive function.② Xiaoji powder not only had relaxing effect on the normal smooth muscle in vitro,but also had a strong spasmolytic effect on acetylcholine,green bariuminduced spasm of intestinal smooth muscle.The experiment was based on 10 μg atropine sulfate as a positive control to carry out control experiments.It showed the graphics of atropine sulfate in spasmolytic role.③Xiaoji powder navel paste therapy played a positive role in adjusting the gastrointestinal electric disorder caused by deficiency of spleen Qi，and could restore it to its normal state. ConclusionXiaoji powder is expected to be a new type of external application of traditional Chinese medicine in gastrointestinal motility.

Key words: Xiaoji powder/Therapeutic use；Gastrointestinal disease/treatment；External application of traditional Chinese medicine；Deficiency of spleen Qi；Chinese herbs；Animal, experiment