The difference between gastric ultrasound and gastroscopy lies in the different ways of examination and the different purposes of examination. The specific choice of what kind of examination method should be combined with the actual situation of the patient’s condition. 1. Different examination methods: gastric ultrasound is a kind of ultrasound examination through the ultrasound probe, in the abdomen to the stomach, the stomach and its surrounding tissues and organs relationship, to carry on the observation of a kind of ultrasound examination. Gastroscopy is through the electronic fiberoptic mirror, through the mouth, esophagus to the stomach, can clearly observe the esophageal mucosa, gastric mucosa. 2. The purpose of the examination is different: gastric ultrasound is to distinguish the structure of the stomach according to the echolocation of the ultrasound, and to distinguish gastric thickening, hyperplasia, tumors, etc. Gastroscopy, on the other hand, is to directly observe the gastric mucosa. Gastroscopy, on the other hand, is to check whether there are ulcers, erosion, polyps, cancerous tissues in the stomach through direct observation of the mucosa of the stomach, and to take biopsies for pathological examination when necessary, so as to determine the nature of it more accurately. Patients should choose the appropriate treatment under the guidance of the doctor.