Objective To explore the distribution rules and differences of syndromes and syndrome elements of chronic non-atrophic gastritis（ CNAG） and chronic atrophic gastritis（ CAG）. Methods By searching Chinese Biomedical database（ CBM）

Chinese National Knowledge Infrastructure（ CNKI）

Wanfang database and VIP database

the epidemiological investigations on CNAG and CAG syndromes and study on clinical syndrome differentiation and treatment of traditional Chinese medicine（ TCM） were included. The general information of the literature

case syndrome differentiation were collect to establish a database. The frequency

number of cases and composition ratio of CNAG

CAG syndrome and disease type

disease type syndrome elements were calculated to compare the differences.Results A total of 241 articles were collected

including 64 articles of CNAG and 177 articles of CAG

with a total of 36 315 cases

among which 11 535 were CNAG cases and 24 780 were CAG cases. The frequent syndromes of CNAG were disharmony of the liver and the stomach

qi deficiency of the spleen and the stomach

heat and dampness of the spleen and the stomach

yang deficiency of the spleen and the stomach

yin deficiency of the stomach

bloods stasis obstructing the stomach collaterals. The frequent syndromes of CAG were disharmony of the liver and the stomach

yin deficiency of the stomach

qi deficiency of the spleen and the stomach

heat and dampness of the spleen and the stomach

spleen deficiency and qi stagnation. The number of qi stagnation in the liver and stomach of CNAG was larger than that of CAG

while the number of bloods stasis obstructing the stomach collaterals of the CAG was larger than that of CNAG. The frequent syndrome elements of disease type of CNAG were qi deficiency

heat

qi stagnation

dampness

yang deficiency. The frequent syndrome elements of disease type of CAG were qi deficiency

heat

yin deficiency

dampness

qi stagnation. The number of syndrome elements of qi stagnation and yang deficiency of CNAG was larger than that of CAG

and the blood stasis of CAG was more than that of CNAG（ P < 0. 05）. The location of CNAG and CAG were mainly in the stomach

spleen

liver and the intestines

in which CNAG was mainly located in the stomach

and CAG was mainly in the spleen（ P < 0. 05）. Conclusions Disharmony of the liver and the stomach and qi deficiency of the spleen and the stomach are the core syndrome of CNAG and CAG

among which the stomach qi stagnation is significant in CNAG and the spleen qi deficiency is significant in CAG. The stomach yin deficiency and the blood stasis obstructing the stomach collaterals are the main syndrome characteristics differentiating CAG and CNAG.