ABSTRACT Trigged with the democratic movements, Taiwan¡¦s society had evolved in the past 15 years that citizen had more opportunities to participate in public policy decisions. As different objects, values and ideologies existing between stakeholders, conflict of the cognitive nature besides interests (i.e. difference in goals) becomes popular in many local development issues. How to analyze and aid such decision-makings then becomes an important public affairs management topic of study. The study uses the cable car issue in Kaohsiung as the task and local stakeholders like citizens, government officers, councils and environment protect group are interviewed and surveyed using the Social Judgment Theory (SJT) as the guiding methodology. Social judgment theory mainly plumbs the issue of ¡§understanding¡¨ which generated from the discrepancy between decision maker¡¦s subjective cognition and objective environment, and the issue of ¡§conflict¡¨ which resulted from the discrepancy of every decision maker¡¦s subjective cognition, as well as seeks for what causes the cognitive conflict in public policy decisions and explores the method to reduce the cognitive conflict. To survey the conflicts¡¦ degree in every decision maker and provide suggestions to government for consultation to draw up relative policies while facing similar controversial issue is what the study for. Key words¡Gcognitive conflict, public policy disputes, social judgment theory¡]SJT¡^