She is a member of the Malaysian Chinese Association (MCA), a component party of the BN coalition.
[1] She was appointed as Deputy Minister of Information, Communications, Arts and Culture, alongside Joseph Salang Gandum on 10 April 2009.
[2] From 4 June 2010, Heng Seai Kie was reassigned as Deputy Minister of Women, Family and Community Development after a cabinet reshuffle.
In October 2012, MCA Women's Vice Chairman Heng Seai Kei accused PAS General Mursydul Tuan Guru Datuk Nik Abdul Aziz Nik Mat of encouraging rape of non-Muslim women who do not cover their private parts.
[3] Head of Information of the Pas Pusat Muslimat Council, Aiman Athirah al-Jundi regretted the frivolous allegation.