AID summer is one of few relatively developed international volunteer projects organized in Taiwan. During the program, participants live and teach in various areas of Taiwan, collaborating and cooperating with other volunteers and local English teachers in teaching elementary school students English for one month. To explore the motivation and cultural experience of AID summer 2017, a quantitative design was employed with 327 respondents. Regarding their motivations, they viewed intellectual and altruism constructs were more important than others. Regarding their cultural experience, their observation of cultural difference and similarity between Taiwan and their residency, their discovery of self-change and their other thoughts from the program were explored. The preliminary findings and future directions were discussed to provide some insights in this field.