目的为了进一步探讨脾虚实质。方法采用银球三电极和高灵敏度应变片传感器记录不同造型组大鼠十二指肠电活动和机械活动。结果脾虚大鼠十二指肠电活动的慢波频率虽降低，但是快波频率增强。并且，十二指肠收缩活动增强，ＭＭＣ周期缩短。四君子汤加味治疗后，大鼠十二指肠电活动及运动恢复正常。结论那么脾虚大鼠十二指肠运动亢进可能是脾虚证吸收不良的原因 Objective To further explore the essence of spleen deficiency. Methods The silver ball three-electrode and high-sensitivity strain gage sensors were used to record the electrical and mechanical activities of the duodenum in different model groups. Results Although the slow wave frequency of duodenal electrical activity in spleen deficiency rats decreased, the frequency of fast wave increased. And duodenal contraction activity increased, MMC cycle shortened. Sijunzi Decoction treatment, duodenum electrical activity and exercise returned to normal. Conclusions So that duodenal hyperactivity in spleen deficiency rats may be the reason of poor absorption of spleen deficiency syndrome