Purpose: This study was performed to identify the effects of oriental herbal tea on the brain function elders at the day care center and the nursing home. Methods: This study used a pre-post quasi-experimental design with a non-equivalent control group. Total 38 of elderly population (20 of experimental group and 18 of control group) was recruited. 100 mL of a type of oriental herbal tea developed for purpose of this study was given to each subject 3 times a day for 30 days (from May to Jun 2013). The brain function quotient was used to measure brain function. The data were analyzed by SPSS/WIN 18.0. Results: After drinking the oriental herbal tea, more significant improvement on attention quotient (AQ), anti-stress quotient (ASQ), emotion quotient (EQ) and brain quotient (BQ) were found in the experimental group than control group. Conclusion: This study shows that oriental herbal tea can be a health promotion option in elders. Therefore the tea can be utilized as an effective intervention for the health of elders in health facilities.