The trial is implemented by the Land Transport Authority (LTA) as part of the Land Transport Master Plan initiatives to provide better service on the public transport network.
Wireless@SG will be introduced at the platforms of all North East Line stations and 12 other stations with high commuter usage.
The 12 major stations are Jurong East, Raffles Place, City Hall, Dhoby Ghaut, Bishan, Serangoon, Buona Vista, Outram Park, Paya Lebar, Orchard, Choa Chu Kang and HarbourFront.
LTA said the trial is aimed at enhancing wireless connectivity for commuters while they wait for the trains.
Wireless@SG is a wireless broadband initiative by the Infocomm Authority of Singapore that aims to extend broadband access beyond homes, schools and offices to public places.
Users can enjoy free and seamless wireless broadband access with speeds of up to 2mbps.
LTA said tenders for the implementation of the Wireless@SG trial will be called on Wednesday, and the service will be progressively available from mid-2014.
LTA added that it will monitor the trial for two years before deciding if the service will be extended to other MRT stations.