120 cases of chronic atrophic gastritis with intestinal metaplasia or dysplasia,It was randomly divided into 60 cases of treatment group and 60 cases of control group,treatment group was given Weifuchun tablets,The control group was given vitamin tablets.

The treatment group（Weifuchun group）was given Weifuchun tablets, 4 tablets each time, 3 times a day, and 1 hour after meals. The control group(vitamin group) was given vitamin tablets (0.2 g), 4 tablets each time, 3 times a day, and 1 hour after a meal.

The all patients' histopathology will be evaluated two times, the first time is when the patients' are included into the clinical trials, the second time is after 24 weeks treatment in each group, patients' histopathology should be evaluated for comparison between two groups,at the same time patients' histopathology should be evaluated for comparison in each group.We use Total score of gastric mucosa pathology to assess the therapeutic effect,the patients' were included into the clinical trials and after 24 weeks treatment we through the Pathological classification of chronic atrophic gastritis work out Total score of gastric mucosa pathology.

As follows:

There are five pathology grade:Chronic inflammation,Active,Atrophy,intestinal metaplasia,dysplasia.

Score 0 is normal;1 is mild; 2 is moderate;3 is severe;cumulative highest score is 15, cumulative lowest score is 0.The higher summed score, the more severe the pathological changes.

The all patients' gastroscopy gastric mucosa manifestations evaluation will be evaluated two times, the first time is when the patients' are included into the clinical trials, the second time is after 24 weeks treatment in each group, patients' gastroscopy gastric mucosa manifestations should be evaluated for comparison between two groups, at the same time patients' gastroscopy should be evaluated for comparison in each group.

We use Gastric mucosa classification under gastroscope of chronic atrophic gastritis to assess the therapeutic effect,work out gastroscopy gastric mucosa manifestations integral.

There are four Gastric mucosa classification under gastroscope of chronic atrophic gastritis: erythema,erosion,Intramucosal hemorrhage,bile regurgitation.Score 0 is normal;1 is mild; 2 is moderate;3 is severe;cumulative highest score is 12, cumulative lowest score is 0.The higher summed score, the more severe the pathological changes.

The all patients Clinical symptom assessment score when the patients' were included into the clinical trials and after 24 weeks treatment in each group. We use Clinical Symptom checklist to assess the therapeutic effect,work out Clinical Symptom integral. Clinical symptom mainly includes stomachache, acid reflux, burping, easy to hungry. Score 0 is frequency never;1 is occasionally; 2 is sometimes;3 is often; 4 is always. Summed highest score is 16, summed lowest score is 0.The higher summed score, the more severe the Clinical symptom.

The all patients ' blood routine examination(WBC,Hb,PLT) evaluation when the patients' were included into the clinical trials and after 24 weeks treatment in each group, this is for Clinical trial safety assessment.To assess the rate of abnormal blood routine examination(WBC,Hb,PLT) in each group.