This study conducts a questionnaire survey to probe into the pro-environmental behaviors of junior high school students buying bottled water and analyze the socio-psychological factors involved in their decision-making. The participants of the survey include 710 Taiwanese students from Grade 7-9. The results of factor analysis consist of seven subscales. Among which the students scored the highest on "Consumption Attitude" and lowest on "Action Skills and Knowledge of Action Strategies." It can be observed that students' pro-environmental behaviors are inversely proportional to the level of their Grade; in addition, female students have showed more pro-environmental behaviors than male students. The conclusions suggest that teachers should incorporate more practical experience or courses that require concrete actions on tackling commonly seen daily issues into the curriculum so as to cultivate students' consumption attitude and behaviors.