Capsule endoscopy is called “Intelligent Capsule Gastrointestinal Endoscopy System”, also known as “Medical Wireless Endoscopy”. The principle is that the patient takes the intelligent capsule with built-in camera and signal transmission device orally, and then moves it in the digestive tract with the help of peristalsis and takes images, and the doctor uses the image recorder and imaging workstation outside the body to understand the whole digestive tract of the patient, so as to make a diagnosis of his condition. Capsule endoscopy has the advantages of convenient examination, no trauma, no wires, no pain, no cross-infection, and does not affect the normal work of the patient, etc. It expands the field of view of the gastrointestinal tract examination, overcomes the defects of traditional insertion endoscopy such as poor tolerance, unsuitable for old and weak and critical conditions, and can clearly observe the small intestine that cannot be reached by gastroscopy and enteroscopy. It is the preferred method for the diagnosis of gastrointestinal diseases, especially small intestinal diseases. After the patient swallows it, the capsule runs in the direction of digestion with the muscle movement of the stomach and intestines, and images are taken, which are then transmitted to a data transmission device attached to the patient’s waist. After a few hours, the physician downloads the images from the capsule to a computer, and the capsule is automatically expelled from the body within 24 hours. With the capsule endoscope, the patient can maintain normal activities and life. Currently, one million people die from rectal cancer worldwide every year, which can be detected and cured at an early stage if a good preventive mechanism is established with the use of capsule endoscopy. The future medical development is the main trend of preventive treatment before the onset of the disease. Capsule endoscopy application field The M2A capsule endoscope from GI Israel has been introduced in more than 30 hospitals since it was introduced into China in 2002, but the number of uses has been greatly affected by some limitations in the product’s functions, especially the high price point (in the early stage, the cost of a patient’s examination was as high as about 8000 to 10,000 RMB). Compared with the imported capsule endoscopes, the domestic OMOM capsule endoscopes are substantially lower in price, with the cost of a single examination at about 3000 RMB, and at the same time have their own unique advantages in technology, so since the introduction of OMOM capsule endoscopes, they have rapidly occupied the market due to their low price and high technological content. The value of capsule endoscopy in clinical application has been an issue that has been troubling hospitals and manufacturers. They are all seeking the positioning of product value from different angles. At the earliest, the Israeli M2A was positioned for whole gastrointestinal examination, however, because the gastric cavity was too large and its elapsed time could not be controlled, it was too random to be used as an option for gastric examination, and the gastroscopy technology was already very mature, so the M2A chose to differentiate its positioning and only specified the M2A for the examination of small intestine. This is because the small intestine, which is 5-7 meters long, has long been known as a blind spot for clinical examinations. The manufacturer of the domestic OMOM capsule endoscope has adopted a completely different mindset in terms of its positioning in terms of clinical value. They positioned the clinical value of OMOM capsule endoscopy in three aspects: first, a comfortable examination means to meet the poorly tolerated people to check the disease and high-end people to check the body; second, a comprehensive diagnosis and treatment means to cooperate with other gastrointestinal examination means in order to improve the diagnostic accuracy; third, a small intestine breakthrough means to achieve true color image examination in the small intestine which cannot be reached by traditional examination methods. The clinical application of capsule endoscopy has shown that in addition to some patients being examined because of illness, more than half of the examinees are of physical examination nature. This proves that capsule endoscopy also has a broader application in physical examination. With the improvement of people’s quality of life, the pursuit of health has become a necessity. If capsule endoscopy can be vigorously promoted in physical examination, it is expected that the late incidence of digestive tract diseases in the nation will be greatly reduced.