Functional dyspepsia refers to a chronic digestive system disease with upper abdominal symptoms originating from the gastroduodenal region, and after clinical examination, including upper gastrointestinal endoscopy, the organic diseases causing the above symptoms are excluded. According to Rome IV standard, functional dyspepsia can be divided into two categories: postprandial discomfort syndrome and epigastric pain syndrome. FD not only seriously affects the quality of life of patients, but also causes a heavy social and economic burden. Therefore, active prevention and treatment of FD, especially PDS, has become an unavoidable problem in clinic. Epidemiological investigation shows that about 30% FD patients have many negative emotions such as insomnia, anxiety and depression, and many anti-negative emotional drugs themselves can cause gastrointestinal side effects, which are considered to be the key reasons for the recurrence of symptoms. In recent years, people have paid more and more attention to the brain-gut axis. Microbial-intestinal-brain axis can also affect brain function by releasing neurotransmitters and inflammatory mediators. In addition, the interaction between bile acids and intestinal microflora may also affect the normal function of the intestine. However, the relationship between specific bile acids, microflora and functional dyspepsia is still uncertain. At present, the effective and safe treatment methods for FD with insomnia are still very limited. In recent years, Auricular Acupressure has obvious advantages in treating FD with insomnia. This study plans to study the clinical efficacy and mechanism of Auricular Acupressure on functional dyspepsia with insomnia. Provide more treatment methods and ideas for clinicians, popularize and apply green diagnosis and treatment methods, bring good news to more patients, and produce remarkable economic and social benefits