Leung graduated from CCC Hoh Fok Tong College and PLK Fong Wong Kam Cheun Primary School (A.M.) in Tuen Mun.

Leung scored a goal to help South China win 3–1 at home to VB Sports Club and advance to the second round of the 2010 AFC Cup.

He made his debut for Guangdong Sunray Cave on 23 June 2012, in a 2–0 away win against Beijing Baxy.

[3] On 12 August 2006, Leung made his international debut for Hong Kong in a friendly match against Singapore.

Leung's lung was infested after playing a friendly against India in October 2010 and had to be hospitalised in an isolated ward.