Abstract： Objective： On the basis of conventional western medicine treatment， to observe the effect of constitution identification based on Chinese medicine and dietary intervention according to four- season preservation on patients with gastrointestinal dysfunction. Methods：A total of 152 patients with gastrointestinal dysfunction were randomly divided into the control group and the study group，76 cases in each group. Both groups were given domperidone tablets and sulfoaluminum chewing tablets for routine treatment. The study group was additionally treated with constitution identification based on Chinese medicine and dietary intervention according to four-season preservation. After treatment，the clinical effect and the changes in levels of gastrointestinal hormone were compared between the two groups. Results：After treatment，the total effective rate was 92.11% in the study group and 76.32% in the control group，the difference being significant(P＜0.05). After treatment， the levels of cholecystokinin and motilin in both groups were increased when compared with those before treatment(P＜0.05)，and gastrin levels decreased(P＜0.05). And the improvement of the above levels in the study group was more significant than that in the control group(P＜0.05). Conclusion：The therapy of conventional western medicine combined with dietary intervention has a significant effect on patients with gastrointestinal dysfunction，which can effectively improve the levels of gastrointestinal hormone and promote the recovery of gastrointestinal function.