After he graduated from Chung-Ang University, he joined Korea National League's side Ulsan Hyundai Mipo Dockyard.
[1] In 2009, he moved to the newly formed Gangwon FC as a founding member with former Ulsan Hyundai Mipo Dockyard manager Choi Soon-Ho.
At the first K-League match against Jeju United, he was injured unexpectedly and will have to go through rehab for eight weeks.
In January 2011, Ahn Sung-Nam joined Gwangju FC on loan for 1 year.
This biographical article related to a South Korean association football midfielder is a stub.