Gastrointestinal ultrasound is a convenient and quick way to detect lesions early. The gastrointestinal ultrasound examination does not require special preparation and requirements before the examination, fasting can be. After Xu drank a cup of about 400 ml of warm gastrointestinal helper 5 minutes before the examination, Director Dong asked Xu to lie on his back, and the abdominal ultrasound probe and instruments clearly showed the five-layer structure of the cardia, fundus, gastric body, pylorus and gastric wall of Xu’s stomach, the smoothness of the mucosa, and the real-time dynamic observation of his stomach peristalsis. Through the filled gastric cavity, the director found an abnormal helper filling area in Xu’s gastric sinus. The director asked Xu to lie on his right side and sit down, and carefully observed the morphology, scope, depth and surrounding conditions of the lesion. Through these signs, the director clearly diagnosed Xu as a malignant ulcer in the gastric sinus with perigastric lymph node metastasis, and the postoperative surgery and pathology confirmed the director’s accurate diagnosis. According to the survey, because the traditional methods of gastric examination barium meal and gastroscopy have their own disadvantages, such as barium meal examination has a contrast agent is a metal substance, the ratio of major metabolic slow, poor taste and prolonged exposure to radiation, gastroscopy because it makes patients feel unbearable, traumatic and cross-infection causes many patients because of fear and delay the disease. Therefore, when people are distressed that there is no practical, non-invasive and painless examination method for early screening of gastrointestinal tumors, gastrointestinal ultrasound examination comes into being. Nowadays, the basic ingredient of the gastrointestinal ultrasound helper commonly used in large hospitals like the Fourth Hospital of Medical University is lotus root powder with a variety of herbs to reduce gas in the stomach, such as coix seed, Chinese yam and Chen Pi, which is nutritious, tasty and has no toxic side effects. Ultrasound diagnosis of gastric and intestinal diseases is mainly through the observation of the thickness of the stomach and intestinal wall and the changes in the layers of the stomach wall to determine their diseases. Especially, it can clearly display the anatomical structure of the stomach wall, such as the mucosal layer, submucosal layer, muscle layer, plasma layer, etc. Therefore, it can be used not only for the detection of tumors, ulcers, inflammation, foreign bodies in the stomach and intestines, gastric stones, etc., but also for the observation of stomach and intestinal tumors and ulcers in terms of their location, size, depth of immersion in the stomach and intestinal wall, and whether there are adhesions and infiltrations with the surrounding tissues; especially for smaller tumors located in the stomach wall and tumors located in the wall and growing outward, ultrasound can clearly display and make correct diagnosis; it can also be used for It can also be used to observe the clinical efficacy of gastric tumors, ulcers and inflammatory diseases in a short period of time with multiple reviews. Gastrointestinal ultrasound is becoming more and more widely recognized clinically because of the introduction of the second generation of gastrointestinal ultrasound co-developer and the development of advanced high-resolution color ultrasound instruments, and the accuracy of the examination has been improving. With the accelerated pace of people’s life and the increase of life pressure, the number of people suffering from gastrointestinal diseases is gradually increasing, especially in the northeast region, which is a high incidence area of gastrointestinal diseases. Gastritis, gastric ulcer including early gastric cancer and other diseases often have similar or no obvious symptoms, so if you find stomach discomfort, do not take medication without authorization, but go to a regular hospital for consultation. Gastrointestinal ultrasound examination is widely accepted by patients for its outstanding advantages of non-invasive, painless, easy to perform, good repeatability and high diagnostic accuracy, and most importantly, it can be widely applied to people who do screening for early gastric lesions, suitable for both young and old, especially for elderly people with unhealthy heart and brain and children and people who cannot or do not want to cooperate with gastroscopy and other examinations.