The process of intubation exists in clinical gastroscopy, i.e., there exists a soft and slender tube lumen of about one meter two at the observation site of gastroscopy, which enters the esophagus through the mouth and finally enters the stomach and duodenum to observe the entire upper gastrointestinal tract organs under the mucosa or lesions, so there exists intubation in gastroscopy. However, due to the technological development nowadays, a new technology has been developed that uses wireless photography technology to enter the stomach cavity through a camera the size of a swallowed capsule to observe the entire upper gastrointestinal tract and even the small and large intestine, called capsule gastroscopy technology, which completely avoids the pain under the general conventional gastroscopy operation. To avoid nausea and discomfort of patients caused by gastroscopic intubation, the digestive tract examination through capsule gastroscopy technology greatly avoids the pain of patients during the examination.