Objective To observe the clinical effect of Liyangqingwei decoction on chronic atrophic gastritis(CAG).Methods 21 patients with chronic atrophic gastritis were treated by self designed Liyangqingwei decoction and took the medicine more than 3 months continuously.Results In all cases,9 cases were described as having marked improvement,and 11 cases were mended,and 1 case was invalidation,and the general efficiency was 95.2%.Conclusion Liyangqingwei decoction has favorable therapeutic effect on CAG.