Henoch-Schönlein purpura (HSP) is a common systemic inflammatory disease of small blood vessels in children. With the gastrointestinal involvement, it is called abdominal type of HSP. The main diagnostic method of abdominal type of HSP is gastrointestinal endoscopy, which can scan the digestive tract lesions directly and take the biopsy. It is of irreplaceable value for the early diagnosis of HSP with gastrointestinal involvement. This article reviews the literatures of endoscopy application in pediatric abdominal type of HSP at home and abroad, and summarizes the endoscopic features and diagnosis of abdominal HSP in children.