Born in 1974 in Hong Kong into a working-class family and brought up on a public housing estate,[1] Lee obtained her Bachelor of Business Administration from the Hong Kong University of Science and Technology and Master of Business Administration from the University of Manchester.

[2] She joined the pro-Beijing Democratic Alliance for the Betterment of Hong Kong when she was approached by the former party chairman Tsang Yok-sing around 2004.

In 2018, she was invited to sit on the 13th National Committee of the Chinese People's Political Consultative Conference (CPPCC).

[10] During the 2021 Hong Kong legislative election, Lee dismissed concerns that the record-low voter turnout of 30.2% was problematic.

[13] In August 2022, Lee announced that 16 members of the DAB would travel overseas to clarify any "misunderstandings" businesspeople may have about Hong Kong.

"[15] On 11 March 2023, Lee was elected to the National People's Congress and succeeded Tam Yiu-chung to become the Hong Kong representative in the NPCSC.

[16] In August 2023, she announced that she will not seeking her re-election as DAB chairwoman, citing her "limited time and work capability".