Cheung graduated from The Chinese University of Hong Kong and she received Monbusho Scholarship from Japanese Government in 1995.
She then attended Keio University in Japan for a master's degree in Law, majored in Political Studies.
Cheung joined Cable News Hong Kong in 1993 and left in 1995 to complete her studies in Japan.
During her stay in Japan, she worked as Japanese Correspondent for Cable TV.
She resigned from Cable TV in 2009 and changed to work as corporate promotion in the Hong Kong General Chamber of Commerce.