Objective: To assess the clinical application value of capsule endoscopy in the diagnosis of small bowel bleeding.
Methods: Data of capsule endoscopic examination and related clinical features on 80 cases of suspected small bowel bleeding were retrospectively analyzed,  and the clinical features of the bleeding in old and young patients were compared. 
Results: Among the 80 patients, 77(96.3%) cases showed positive finding of capsule endoscopic examination. The most frequent findings were vascular abnormalities in both young (＜65 years) and old (≥65 years) groups, with increased ratio in the old group (59.5% vs. 37.2%, P＜0.05).  The occurrence of vascular tumor and neoplasm was more common in the young group compared with the old group. The mean hemoglobin concentration decreased more markedly（88 g/L vs. 72g/L, P＜0.05）and with shorter onset in the young group compared with the old group. More comorbidities were found in the old group compared with the young group. 
Conclusions: Capsule endoscopy examination is a non-invasive and safe method, that can be used as a first line diagnostic test in the diagnosis of small bowel bleeding.