This article is a discussion about the political model of Taiwan's transition from a party-state authoritarian regime to a democratic constitutionalist one. It also tries to discern and evaluate its experience and achievement. Although oppositional pressure existed from the beginning to the end, the whole process was steered by the Kuomintang, the governing party. The key factor was that the Kuomintang leader, Lee Teng-hui, wisely manipulated the people's morale and the party-state power. The successful democratic transformation was therefore named as the Quiet Revolution. However, it was also because the democratization approach taken by Taiwan was a peaceful transformation rather than a radical revolution, the Kuomintang's political legacy could not be completely removed, and this was also the cost and outcome of the Quiet Revolution.