It is wheelchair accessible First announced in May 1982 as Tampines South, it was to be constructed as part of Phase II of the MRT system.

The station was temporarily closed in December 2024 for track works for East Coast Integrated Depot (ECID).

[17] This came after a letter was published on The Straits Times revealing that residents of Harvey Avenue, Jalan Angin Laut and Sunbird Road had to walk on a grass verge to get to the station, which became muddy when it rained as well as posing a risk for the elderly and young children during the night.

[17] Moreover, the station was criticised for its design in another letter sent to The Straits Times in 1992, claiming that commuters without umbrellas could only walk "along a half-metre wide platform next to plant bins" to the adjacent building compound (Block 248).

[22] In 2008, the Land Transport Authority (LTA) announced an accessibility enhancement programme for ten stations, including Simei.

[25] Following a rise in track intrusions as well as commuters slipping when rushing for the train, the LTA and SMRT decided to install platform screen doors.

[26] Half-height platform screen doors were eventually installed and commenced operations at Simei station by August 2011.

[31] As a part of track works for the East Coast Integrated Depot (ECID), it was announced by the LTA in November 2024 that Simei station would not be in operation between 7-10 December 2024 as it is part of a safety buffer zone between Tampines and Tanah Merah stations where power has to be turned off in order for the third rail to be safely removed.

During the suspension, there was a shuttle bus service for affected commuters that went from Tampines to Tanah Merah stations, including Simei.

[32][33] On 9 December, it was announced that passenger services to the affected stations would resume the following the day as the works were done ahead of schedule.

[45] It has a distinctive colour on the doors of restricted areas and ceiling trunking box on the platform to aid in identification, using nutmeg brown.