Endoscopic clipping hemostasis (ECH) is an effective method to control bleeding. However, ordinary clipping apparatuses have not been widely adopted because of several disadvantages. Accordingly, we developed an improved ECH apparatus that can be used during a general endoscopic examination without requiring an assistant. It is not only easy to operate but also ensures safe and effective hemostasis. The ECH apparatus was employed in 80 patients between February 1983 and August 1987 at the Sakura National Hospital. Fifty-one of the patients had upper gastrointestinal bleeding; in 29, preventive clipping was performed after polypectomy. Permanent hemostasis was maintained in 43 (84.3%) of the patients with upper gastrointestinal bleeding, and no bleeding was recognized in any of the 29 patients treated with prophylactic clipping following polypectomy.