The purpose of the present study is to apply Maitland orthopedic manual physical therapy to patients to examine the effects of the therapy on the digestive system through serum gastrin tests that can identify the motility of the digestive system and dyspepsia symptoms and can provide basic data for internal medicinal physical therapy. Maitland orthopedic manual physical therapy was implemented on 20 subjects in total, with 10 in a dyspepsia group and 10 in a control group, for 20 minutes per day, three days per week for three weeks, and the following results were obtained. In the control group, serum gastrin values significantly decreased between before and after treatment(p<.01), and among questionnaire items regarding dyspepsia, those regarding epigastric pain and belching showed significant decreases in these symptoms(p<.05). In the dyspepsia group, serum gastrin values significantly decreased between before and after treatment(p<.01) and all questions regarding dyspepsia showed significant decreases in all symptoms(p<.01). According to the analysis, the dyspepsia group decreased significantly more than the control group in serum gastrin values and all dyspepsia symptoms, except for belching(p<.001). Through the present study, it was identified that Maitland orthopedic manual physical therapy can improve dyspepsia symptoms and is an effective treatment method for internal diseases, such as dyspepsia, by improving gastric motility to become close to the normal state.