Endoscopic percutaneous gastro/enterostomy has been used clinically since 1980 by Gauderer and is now widely accepted. For patients requiring long-term artificial nutrition, the endoscopic approach has the advantages of being simple, quick (15-30 minutes) and safe, requiring no special anesthesia and having low postoperative complications compared to traditional surgical gastrostomy, as well as being easy to care for and less painful for the patient after the procedure. In terms of nutrition supply, compared with total intravenous nutrition supply, transgastric nutrition by endoscopic fistula has the advantage of being easily absorbed by the normal digestive tract of human body, and the nutrients are inexpensive and easy to be widely used. Therefore, endoscopic percutaneous gastrostomy has become the first and main method for patients who need long-term non-oral nutrition supply. Indications: ① long-term or prolonged loss of swallowing function due to various neurological diseases, inability to feed nutrition orally or intranasally, dysphagia due to various myopathies, and anorexia nervosa due to complete inability to eat; ② severe malnutrition due to malignant tumors and other systemic diseases, requiring nutritional support, but unable to tolerate surgical fistula; ③ major oral, facial, pharyngeal, and laryngeal surgery, requiring prolonged nutritional support. ④ Those with feeding difficulties caused by trauma or tumor; ⑤ Those with esophageal perforation, esophagus-tracheal fistula or various benign and malignant tumors causing esophageal obstruction.