To reveal the basic characteristics of the digestive tract of Sunken Ear Frog(Odorrana tormota),paraffin section and Longguikai’s silver staining were used to observe histological characteristics and distribution density of argyrophil cells in the digestive tract.Longitudinal plica and gastric pits were obviously observed on the gastric wall and glands were well developed.The small intestine could be divided into duodenum and ileum,with goblet cells scattered among the duodenum epithelial cells,while no glands were found in the duodenum.Argyrophil cells in various shapes,such as brush-headed,conical,spindle-like,elliptical and rectangular,were observed along the whole digestive tract,and these cells in gland epithelium of pilori and villus epithelium of duodenum had apophysis pointing to the acinar lumen or intestine,indicating the possible luminal secretion function of these cells.Pylorica part of suomach had the highest density of argyrophil cells,followed by the duodenum and the body of stomach,and the least in esophagus.Therefore,the stomach is believed to have both digestion and secretion functions in Sunken Ear Frog,and the duodenum is the main absorption tract,with some secretion functions.Argyrophil cells in the digestive tracts have both endocrine function and luminal secretion ability.