The morphohistology of gastric and intestinal wall of Epinephelus coioides was described. The gastric mucosa is folded and lined by simple columnar epithelium. Gastric pits open into simple tubular glands. Lamina propria – submucosa consists of connective tissue with numerous eosinophilic granule cells, and muscularis is bilayer. The intestine has many villi as finger like projections and its epithelium is simple columnar interspersed with goblet and rodlet cells. The tunica muscularis is composed of two muscle layers, thick inner circular and thin outer longitudinal. There were no muscularis mucosae in both of organs.