Abstract: 14 cases of Advanced Cancer Simulating Early Gastric Cancer (ACSEGC) were proved surgically and pathologically which accounted for 6.2％ of the resected gastric cancer during the same period. As to the location, the cardia was the most common region (57.1％). Among them 5 cases (35.7％) were pouch-type (Ⅱ^c. Ⅲ+Ⅱ^c), and 7 cases protrusion-type; 12 cases were misdiagnosed as early gastric cancer and 2 cases as gastritis under visual endoscopic observation. As to histology, there were more poorly differentiated adenocarcinomas (64.3％) . In most of cases, the infiltration to muscular layer was observed, and infiltration to serosa and subserosa was found only in 3 cases. Metastasis to the lymphonodes was less. ACSEGC is between early and advanced cancer, and prognosis was better. The follow-up study for 2—8 years revealed that 11 cases are survival and 3 dead.