The champion and the second of the final round are promoted to the Hong Kong Second Division League.
Teams from this division, as well as from Hong Kong Third 'A' Division League, enter the Hong Kong Junior Challenge Shield.
Project Phoenix is a project held by Hong Kong Football Association which aims to make changes on and help Hong Kong football to develop.
The project suggests to merge Hong Kong Third 'A' Division League and Hong Kong Third 'District' Division League into one and form the Hong Kong Fourth Division League which will be the bottom tier of Hong Kong football league system.
The remaining teams from Hong Kong Third A Division League and Hong Kong Third District Division League will compete in Hong Kong Fourth Division League in the 2012–13 season.