Dear Patients: Are you troubled by postprandial fullness for a long time? Do you have difficulty in swallowing because of early satiety with little food? Are you depressed due to stomach discomfort? Is your life and work affected by this? If so, let’s take action to take care of your stomach! Functional dyspepsia is a disease caused by improper diet, work stress, depression and other factors, with postprandial fullness, early satiety and pain in the upper abdomen as the main symptoms. The number of people suffering from this disease is increasing year by year, the disease is prone to recurrence, and there is no ideal treatment drug. Although it is not life-threatening, its long course and persistent disease seriously affect our daily life and work quality. This project is based on the overall design of the National Key Basic Research and Development Program, “The rule of evidence and mechanism of treating gastrointestinal diseases from the spleen”, and the research drugs are based on the classical Chinese medicine prescriptions and jointly discussed and formulated by famous Chinese medicine and gastroenterology experts, which bring together the clinical experience of many experts, with reliable efficacy and high safety. The subject has been approved by the ethics committee, and your rights and interests will be fully protected. Subjects enrollment requirements: 1. Clinical manifestations of postprandial fullness and discomfort, early satiety, etc. 2. No organic changes such as ulcer, H. pylori infection, heterogeneous hyperplasia, etc. were found on gastroscopy. 3. aged between 18 and 70 years old, living in Beijing for a long time and willing to receive treatment. The treatment period of this study is 28 days. For your convenience and portability, this study uses Chinese herbal medicine no-decoction granules. You will have relevant examinations (gastroscopy, routine blood tests, liver and kidney function, ECG, etc.) free of charge during the study period, and relevant examinations to evaluate gastrointestinal dynamics and absorption function (gastric emptying test, serum and urine D-xylose tests, etc.) are used in this study. By participating in this study, you are not only potentially getting better and less painful, but you are also supporting the development of science so that more people will get better and less painful. If you meet the above criteria, you are welcome to contact us, consult us, and we will be happy to answer your questions and help alleviate your suffering.