This study was retrospectively investigated the clinical features, diagnostic imaging, treatment, and prognosisof foreign bodies according to alimentary site and type of foreign body, in 143 dogs. Among 28 breeds, Maltese,Shih Tzu, and terriers including the Yorkshire terrier were presented with high prevalence. Bone was the most commonlyidentified (33%) foreign body regardless of alimentary site. Approximately 76% of foreign bodies were in the stomachand small intestine. All esophageal foreign bodies were diagnosed on survey radiography, with the most commonlocation being the caudal thoracic esophageal segment. Further diagnostic examinations including ultrasonography orcontrast studies were additionally performed to detect radiolucent foreign bodies and perforation or leakage in thestomach and intestine. However, most seeds could be identified based on the characteristic features such as hyperdensethin double lines and inner gas on survey radiography. In conclusion, complications such as peritonitis and intestinalperforation were mainly observed in cases with seeds and linear foreign bodies. Especially, fabric foreign bodies couldbe induce peritonitis and re-perforation with high prevalence after surgical correction.