Chinese herbal medicines for gastrointestinal tract are the same when taken before and after meals, half an hour before meals and 1-2 hours after meals. This way food and medicine do not mix and can make the medicine work well to the best. Gastrointestinal and tonic drugs are recommended to be eaten before meals, while diarrhea or drugs that can easily induce diarrhea are best eaten after meals. In clinical practice, the adjustment of the gastrointestinal tract should be considered in addition to the application of drugs, but also the adjustment of living habits, especially the adjustment of work and rest, sleep, which should be noted. Chinese medicine for gastrointestinal tract adjustment is best under the guidance of a professional doctor to reasonably identify the evidence and reasonably apply drugs for treatment.