Peng was elected to the
Taoyuan County Council in 1986 and served until 1990, when he became a member of the
Taiwan Provincial Consultative Council. There, Peng served two terms, to 1998. In 2001, he was elected to the
Legislative Yuan. Upon losing his second reelection campaign in 2008, Peng was appointed deputy minister of the
Hakka Affairs Council. In 2010, he declared his candidacy for a Taoyuan County by-election, but later dropped out, supporting eventual winner
Kuo Jung-tsung. Peng's son has served on the
Taoyuan City Council. Peng died on 26 November 2024, at the age of 73. His final political post was national policy adviser to President
William Lai. ==References==