本研究有感於近年來台灣社會政治活動的參與情況，與往年相較起來熱絡許多，從以往只能透過數年一度的選舉活動，來表現個人的政治參與；到目前有許多人能夠從網路發表自身意見，討論時事議題，進而與政府、官員們接觸，甚至透過大型的集會活動來表達個人的立場以及訴求，企圖影響，並改變當前政治環境。在眾多參與政治的過程當中，個人心理因素對於投入與否的影響效果十分重要。政治態度的種類繁多，筆者在本文以政治效能感的角度出發，探討民眾對於政治參與的動機。是否會因為個人能夠理解政治，同樣能夠感受到政府官員對於個人的關心與重視，進而擁有認為自身能夠影響政治的這項心理態度，使得個人願意力行不同種類的政治參與。 本研究運用2013年「台灣選舉與民主化調查研究」資料，探索政治效能感對於政治參與的影響效果。除了檢證過去理論中：政治效能感愈高，愈會參與政治活動之外，區分了政治效能感的內在與外在的不同面向，以及政治參與的不同種類，探討政治效能感對於不同種類的政治參與是否具備不同的影響效果。研究結果發現，內在政治效能感較容易影響純粹表達意見的政治參與，而外在政治效能感較容易影響企圖改變現況的政治參與，此一發現提供與以往不同的理論觀點，認為政治效能感對於是個人政治參與的影響，是一項重要心理因素。 / Over the past few years, political participations in Taiwan have been flourished. Indeed, a democratic society, like Taiwan, should allow people to have various ways to participate in politics beyond simply casting their votes, including demonstrating on the street to show what they stand for. By examining public opinion data in Taiwan, this study aims to explore the relationship between political efficacy and different types of political participations. Specifically, this study use the 2013 Taiwan’s Election and Democratization Study (TEDS) data to examine the extent to which one’s political efficacy could influence his/her political participations. The conventional wisdom suggests that the higher the political efficacy, the more political activities one may participate in. Additionally, previous research also posits that the linkages between political efficacy and participation vary, depending on different components of political efficacy as well as various types of political participations. The empirical results of this analysis show that the respondents who have higher internal political efficacy are more likely to participate in “opinion-expression actions”. On the other hand, those who have higher external political efficacy are more likely to participate in “changing the status quo action”. In short, political efficacy should be regarded as an important psychological element that may influence different dimensions of political participations.