Ms. Liu is current Legislator of Legislative Yuan, Taiwan, since 2015.She had been the Deputy Mayor of Kaohsiung City Government from 2010 to 2014. Before that, she had served as local and central government officials, such as the Deputy Secretary General of National Security Council, the Deputy Secretary General of Office of the President, and the Secretary General of Executive Yuan. 

Ms. Liu has been devoted to rudimental level of environmental protection movements. She played an important role in major health crisis and natural disaster in Taiwan, such as recovering from 921 Earthquake, anti-SARS and reconstructing from Typhoon Morakot and Gas Explosion Incident.