Objective:To explore the correlation between the endoscopic diagnosis and pathologic diagnosis of CG (chronic gastritis) in older patients. Methods:A control experiment was carried out between gastroscopic diagnosis and pathologic diagnosis of 352 senior patients with CG. Results:225 cases of NAG(non-atrophic gastritis) and 127 cases of CAG (chronic atrophic gastritis) were diagnosed by endoscopic examination. Comparing to pathologic diagnosis, the accuracy of NAG was 98.67%, while the accuracy of the CAG was 66.93%. A significant improvement of correlation(85.50%) was obtained when combining several endoscopic characteristics. Conclusion:Correlation between gastroscopic diagnosis and pathologic diagnosis was relatively high for NAG, while relatively poor for CAG, but macroscopic diagnosis was indicative to pathological changes for CAG, especially when several endoscopic characteristics coexisted. Currently, the endoscopic diagnosis can＇t substitute for mucosal pathologic examination yet.