Objective To explore the relevance of TCM syndromes of CAG patien 216842ts with gastroscopy， gastric mucosal pathology and H. pylori infection. Methods One hundred and thirty-eight diagnosed CAG patients were randomly selected as the research subjects so as to investigate their TCM syndromes as well as study the relationship of the distribution characteristics each syndrome with gender， age， gastroscopy， gastric mucosal pathology and H. pylori infection. Results 1. The highest distribution percentage of TCM syndrome was reported in deficiency of the spleen and stomach， followed by spleen-stomach damp-heat syndrome；most cases of spleen-stomach damp-heat syndrome were males， while females were mainly affected by the rest syndromes；the highest average age was distributed in stagnated blood of stomach meridian syndrome. 2. Subject to the endoscopic manifestations of various syndromes， the highest percentage of simple atrophy morphology was reported in deficiency of the spleen and stomach syndrome， the highest percentage of accompanied erosion and bile reflux in spleen-stomach damp-heat syndrome， and the highest percentage of accompanied mucosal entorrhagia in stagnated blood of stomach meridian syndrome. 3. According to the gastric mucosal pathological manifestations of various syndromes， rank sum test showed that deficiency of the spleen and stomach syndrome was associated with the least overall atrophy， which was significantly different compared with syndrome of disharmony between liver and stomach， spleen-stomach damp-heat syndrome and stagnated blood of stomach meridian syndrome（P<0.05 or P<0.01）； of them， the highest percentage of atrophy was found in stagnated blood of stomach meridian syndrome， which was also associated with the highest percentage of intestinal metaplasia and dysplasia. 4. The overall infection rate of H. pylori was 47. 8%， where the highest infection rate（69. 4%） was found in spleen-stomach damp-heat syndrome， which was significantly different compared with stomach yin deficiency syndrome and deficiency of the spleen and stomach syndrome（P<0.05 or P<0.01）. Conclusion The distribution law of TCM syndromes of CAG patients is correlated to a certain extent with gender， age， electronic gastroscopy， gastric mucosal gathological features， H. pylori infection and other factors. This study has positive significance both for the clinical diagnosis and treatment as well as the progress in CAG prevention.