To help resolving a longstanding dispute over nuclear power in Taiwan, authorities decide put the fate of the power plant to a national referendum in the near future. Successfully resolving nuclear issues to achieve a balance between economic growth and social acceptance is critical to achieving government managerial effective. This study focus on publics risk and benefit perceptions toward nuclear power plant, and the antecedents of these perceptions, include clear nuclear policy, nuclear knowledge and trust. Data is collect from mail questionnaire across Taiwan. The results showed that peoples risk and benefit perceptions are both significant ways of influencing attitude toward the topic of ceasing or maintain nuclear power. This study shed some light on the importance of antecedence factors of risks and benefits and the way they are related to trust in government and level of nuclear knowledge.