Keo Sokngon moved to Vietnam to live with his family when he was 3 years old and learnt Vietnamese from his mother.

As a striker, he scored 12 goals in 2009, significantly contributing to the 2009 Cambodian League championship of Phnom Penh Crown.

He spent one season with Samut Sakhon in Thailand where he received the best player award of the division.

On 23 June 2015, he signed with Phnom Penh Crown once again as well as his younger brother, Keo Sokpheng.

[2][3][4] After the 2017 Cambodian League season Sokngon was forced to step away from and eventually retire from Football prematurely due to a long term knee injury.