行政院經濟建設委員會
Liu served in the Legislative Yuan from 2002 to 2007 as a member of the People First Party. She resigned her legislative seat in November 2007 to run for reelection as a member of the Non-Partisan Solidarity Union, and lost. Liu then became the chief economic adviser to Chinatrust Financial Holding until she was named the minister of the Council for Economic Planning and Development in 2010. Liu led the CEPD until 2012, when she was appointed the Minister of Finance. In April 2012, Liu pushed for a capital gains tax against the wishes of the Kuomintang legislative majority. She submitted her resignation on 29 May, and it was approved the next day. In 2013, Liu was appointed to the Hong Kong Economic Development Commission.