The herb Centella asiatica urban, a creeping plant in a family of Apiaceae, is found almost all over the world including in China, India and Thailand. Centella asiatica is a possess memory enhancing effect , anti-inflammatory, wound healing , anticancer and antioxidant properties.The results from this study suggest that the ingestion of single dose of Centella asiatica can modulate only the reaction time of spatial memory and %accuracy of numeric working memory in the healthy elderly.Centella asiatica could increase calmness .therefore we suggested that the plant extract might possibly improve positive emotion such as alertness and calmness, which in turn improve attention and finally improveworking memory. Recently, Centella asiatica products are widely available in market as cognitive booster.