Seojeongni Station opened with the Gyeongbu Line in 1905 to service the agricultural area between Pyeongtaek and Osan.

These were eventually phased out in favor of limited Mugunghwa (then 2nd class) services in the 1990s and 2000s (decade).

On January 20, 2005, Seoul Subway Line 1 started local and express services and in 2010 the new Nuriro class of commuter trains began service to Seoul Station, Yongsan, Anyang, Suwon, Osan, Pyeongtaek and Cheonan.

Surprisingly, Songtan Station was built during the Korean War, so there is a big difference between the opening period of more than 50 years.

Prior to the arrival of the metropolitan train, Pigeon, Tongil, and Mugunghwa stopped.

Seojeongni Station has an average daily number of over 10,000 users as the number of users continues to increase due to development projects such as Seojeong-dong and Jungang-dong, as well as development projects such as Godeok International New Town and Godeok Industrial Complex.

Accordingly, the city signed a business agreement with the National Railroad Corporation and Gyeonggi Housing and Urban Corporation to provide a convenient railroad environment for citizens using Seojeongni Station and to resolve the imbalance of convenience facilities in the original downtown, and install escalators at the main entrance to the original downtown and in the passageway connecting the subway platform.

promoted As a result, in November 2021, the escalator was installed in the passageway connecting the upper and lower train platforms and is in operation.

[5] Its neighborhood is also part of a Pyeongtaek construction zone, which also includes Seojeong-dong, Jangdang-dong, Mogok-dong, Ichung-dong, and Jije-dong.