After Wales in 1998, Kiat Lee continues with his CLP back in University of Malaya and done his reading in Chamber in a prominent firm in Malacca in 1999.
In 2001, Kiat Lee qualified as an Advocate & Solicitor of High Courts (Malaysia) and practiced as a Legal Assistant until 2006.
Kiat Lee started to be active in politics when he joined as a Malaysian Chinese Association (MCA) member in 2003.
In 2004, Kiat Lee assisted YB Wong Nai Chee who was the candidate of Barisan National in 2004 General Election for constituency Kota Melaka (P138).
Since 2006, Kiat Lee is the Chairman of Jalan Tun Tan Cheng Lock MCA Branch in Melaka.