Such salivation parameters as saliva volume, total protein saliva concentration and amylolytic enzyme activity as well as their discharge levels were compared to the level of H. pylori contamination of the stomach mucous coat in clinically healthy people (30 people) and patients with complicated duodenum ulcer (142 patients) within various terms after the duodenoplasty eradication and within long-term periods after the selective proximal vagotomy (50 patients). The amylolytic enzyme activity and ptyalin discharge was higher in clinically healthy but HP-contaminated subjects than HP-negative people. A direct relationship that was expressed by the salivation volume and ptyalin discharge best of all with the level of the stomach mucous coat contamination in healthy volunteers and patients with duodenal ulcer was established.