Capsule endoscopy is currently used as the first choice for the diagnosis of gastrointestinal diseases, especially small bowel diseases. Capsule endoscopy, also known as capsule endoscopy, is equivalent to the camera implanted into the medical capsule, through the human body after swallowing through the esophagus, stomach and intestines, through the taking of photographs to diagnose digestive diseases of a diagnostic and therapeutic means, the camera ingested images transmitted to the waist equipment, and finally downloaded to the computer, through the computer camera images to analyze, to achieve the purpose of the examination. To do capsule endoscopy should be done in advance to prepare the intestinal tract, pay attention to diet, avoid contact with the electromagnetic source area. Patients should report to the doctor if they have any discomfort during the endoscopy, and treat the symptoms at the same time. After the examination, if there is any discomfort, it is recommended to consult a doctor in time, under the guidance of a professional doctor to clarify the cause of the disease for targeted treatment.