Liga Futebol Amadora Segunda Divisão (often referred to as the LFA Segunda Divisão) is second-highest division of the Liga Futebol Amadora and second-highest overall in the Timorense football league system.
Two finalists of the league get a promotion to Primeira Divisão.
The following 12 clubs competed in the 2017 Segunda Divisão with FC Zebra and FC Porto Taibesse as relegation clubs from Primeira Divisao and Lalenok United FC, FC Lero and FC Fitun Estudante as newly expand club replaced Sport Dili e Benfica, YMCA FC, União de Timor and FC Café who was relegated from 2017 season.