Objective To analyze treatment experience of Traditional Chinese Medicine（TCM） experts on chronic gastritis using data analysis. Methods All literature about experts’ experience in treating chronic gastritis was searched from Wan Fang Data

Journal Full-Text Database and Dissertation Full-Text Database of China National Knowledge Infrastructure. Effective medical records of chronic gastritis were collected by browsing books Clinical Experience and Zhang Zesheng Medical Records. Information on TCM four diagnostic methods

TCM syndrome diagnosis

therapy and prescription was extracted and standardized. Data from medical records was collected with template of structured electronic patient record designed with case collecting system for research

and a database was established.Descriptive statistics of chronic gastritis symptoms

syndrome elements

therapies and medication frequency

and association rule analysis on the relationships among symptom

syndrome

therapy

and herbal medicines

as well as between Chinese herbs and regularity of compatible herbs were conducted on the data mining platform. Results Totally 278 effective medical records from 108 TCM experts were collected. Top five frequent symptoms of chronic gastritis were stomachache（200）

Gastric distention（176）

anorexia（139）

eructation（101）

and acid regurgitation（87）. Top five frequent syndromes were spleen Qi deficiency（ 128）

liver depression（ 92）

Qi stagnation（82）

stomach-heat（53）

and damp-heat（50）. Top five frequent therapies were invigorating spleen（141）

clearing heat（109）

regulating Qi（95）

soothing live r（93）

and dissipating dampness（58）. 239 herbs were applied in 278 records

with 80 herbs recorded more than 10 times. 40 kinds of Chinese herbs were with recorded frequency over 10%

including Gancao（ Liquorice

甘草）

Banxia（ Pinellia

半夏）

Baishao（ White Peony Root

白芍）

Chenpi（ Tangerine Peel

陈皮）

Baizhu（ Atractylodes

白术）

etc. Common compatibility herbs for chronic gastritis were: Baishao（ White Peony Root

白芍）

Fuling（ Poria

茯苓）

Chenpi（ Tangerine Peel

陈皮）

and Baizhu（Atractylodes

白术） respectively with Gancao（ Liquorice

甘草）; Dangshen（ Codonopsis pilosula

党参）

Baizhu（Atractylodes

白术） and Chenpi（Tangerine Peel

陈皮） respectively with Fuling（Poria

茯苓）; Fuling（Poria

茯苓）

Baizhu（Atractylodes

白术）

Chenpi（Tangerine Peel

陈皮） and Gancao（Liquorice

甘草） respectively with Sharen（ Amomum

砂仁）; and Maiya（ malt

麦芽）

Shanzha（ hawthorn

山楂） and Shenqu（ medicated leaven

神曲） with Baizhu（Atractylodes

白术）

Chenpi（Tangerine Peel

陈皮） and Fuling（Poria

茯苓）. Conclusion Original cause of chronic gastritis was spleen deficiency and liver depression; while superficial cause was Qi stagnation

dampheat and blood stasis. Strengthening spleen

replenishing Qi and relieving depressed liver were basic treatment principles. According to different concurrent syndromes

other kinds herbs were also used

in order to promote Qi

clear heat

dissipate dampness

activate blood

nourish Yin or warm Yang.