After WWII, Taiwan was fall into the rule of KMT, lots of the Taiwanese elites retreated from the political field. However, Tsai Pei Huo is one of the handful people who did not retreat. Most studies of Tsai Pei Huo concentrated on his activities under Japanese governance, but few discussion ever tried to explore his political participation under KMT governance. Therefore, this article not only tries to inquiry how Tsai Pei Huo adapted to the different regimes, but also to re-evaluate his political influence under KMT governance.